192 Anatomy Trivia Questions (Ranked from Easiest to Hardest)

Anatomy is the study of the structure and organization of living organisms and their parts. It is a fundamental aspect of the medical sciences and is essential for understanding how the body works, both in terms of its normal functioning and when things go wrong. The human body is an incredibly complex system, and the study of anatomy helps us to understand its various components and how they interact with each other.

Anatomy trivia questions are a fun and engaging way to test your knowledge of this fascinating subject. Whether you are a medical professional, a student of anatomy, or simply someone who is interested in learning more about the human body, these questions will challenge you and help you to expand your understanding of anatomy.

Here are some examples of anatomy trivia questions: What are the different systems of the human body? What is the function of the skeletal system? What is the largest organ in the human body? What is the function of the cardiovascular system? What is the function of the digestive system? These questions and others like them will help you to develop a deeper understanding of the anatomy of the human body and the role that each of its parts plays in maintaining good health.

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192 Anatomy Trivia Questions Ranked From Easiest to Hardest (Updated for 2025)

1. An "umbilicoplasty" is a form of cosmetic surgery intended to modify the appearance of what typically unnoticed body part?

Answer: Belly button

2. What joint in your arm is where the humerus, radius, and ulna bones all meet?

Answer: Elbow

3. What fibrous tissue connects the calf muscles to the calcaneus? It is named after the Greek hero who killed Hector outside of Troy.

Answer: Achilles tendon

4. Common in athletes, ACL surgery reconstructs or replaces a ligament located in what joint of the body?

Answer: Knee

5. Which sensory organ is the tympanic membrane found in? (Hint: You’ll have to drum up your memories of human anatomy to answer correctly).

Answer: Ear

6. A friction-y type of car brake and 4/7 of the familiar name for the ear part known as the tympanic membrane are both known by what booming four-letter word?

Answer: Drum

7. The average adult has about 22 square feet (or about 8 pounds) of which organ, making it the largest in the human body?

Answer: Skin

8. There are about 5.6 liters (or about 7% of their total body weight) of which life-giving fluid in the average adult’s body?

Answer: Blood

9. The nares are another name for which part of your nose that leads into your nasal passages?

Answer: Nostrils

10. If you had to get orthopedic surgery to mend your torn meniscus, what largest joint in the body would you have to get repaired?

Answer: Knee

11. There are non-image-forming ganglion cells in the human eye (and other mammals) that are still photosensitive and receive light signals that can help regulate and suppress the production of what "M" hormone that helps regulate the sleep-wake schedule?

Answer: Melatonin

12. As far as we can tell, Michael Jordan, Gene Simmons, and Miley Cyrus all have very active hypoglossal nerves. The hypoglossal nerve is responsible for the movement of what muscular organ?

Answer: Tongue

13. What tiny structures are, at between five and ten micrometers in diameter, the smallest blood vessels in the human body?

Answer: Capillaries

14. Small structures called "papillae," including types called fungiform and filiform papillae, are what give what part of the human body its characteristically rough texture?

Answer: Tongue

15. The human retina contains receptor cells of two different types: rods and what tapered shapes?

Answer: Cones

16. In addition to conditions of the gallbladder, bile ducts, and pancreas, a hepatologist is a doctor who specializes in the treatment of what large internal organ?

Answer: Liver

17. What is the C-word phase for muscles shortening while they are exerting force?

Answer: Concentric phase

18. Which medical term from the Latin terms for “blood” and “break forth” refers to a lot of bleeding, which can be life-threatening?

Answer: Hemorrhage

19. Which part of the body is comprised of the carpus and metacarpus?

Answer: Hand

20. Ask R.L. Stine: the reflex "piloerection," which involves the contraction of hundreds or thousands of small "arrector pili" muscles in the body, is better known by what name?

Answer: Goosebumps

21. Sometimes called the breastbone, what bone sits at the front of the chest and connects with the ribs with the cartilage? Based on its name you might think it is an unrelentingly serious bone.

Answer: Sternum

22. What is defined as the medical specialty looking at anatomy, physiology, pathology, symptomatology, and therapeutics related to the blood and blood-forming tissues?

Answer: Hematology

23. With a name that literally means "around heart" in Ancient Greek, what "P" is the name of the double-walled sac that surrounds the heart?

Answer: Pericardium

24. What muscle in the human body gets its name from the resemblance of its shape to that of the fourth letter in the Greek alphabet?

Answer: Deltoid

25. The least understood of the five types of taste receptors on the human tongue are those for nucleotides and glutamates that are described by what Japanese term, which translates to something like "savoriness?"

Answer: Umami

26. What iron containing metalloprotein carries oxygen from the lungs to the rest of the body? It is in the red blood cells most vertebrate animals.

Answer: Hemoglobin

27. What is the general term for the small tubes in the circulatory that carry deoxygenated blood back to the heart? It sounds like an adjective for a conceited person.

Answer: Vein

28. In anatomy, what S-adjective describes a plane that runs from front to back, dividing the body or one of its parts into left and right sides?

Answer: Sagittal

29. Of the three principal layers that make up human skin, what name is given to the outer most layer that provides a waterproof and protective barrier?

Answer: Epidermis

30. The "nephron," which is composed of a renal corpuscle and a renal tubule, is the basic unit that makes up what organ?

Answer: Kidney

31. In the human body there are "pyloric," "ileocecal," and "urethral" types of what circular muscles, which maintain constriction of an orifice?

Answer: Sphincters

32. What structure controls the pupil (and therefore how much light is let into the eye) and shares its name with a flower (which kind of makes sense, as it’s the most colorful part of your eye)?

Answer: Iris

33. The word "proximal" is used to describe anatomical features that are close to the main mass of the human body. What similar word is used to describe anatomical features that are far away? An example might be the hand, as compared to the upper arm.

Answer: Distal

34. The palmaris brevis, abductor digiti minimi, and flexor digiti minimi brevis are all muscles that can be found in what part of the human body?

Answer: Hand

35. Put your back into it: it's a cervical vertebrae analogy! C2 is to the head-turning vertebrae known as the axis, as C1 is to what head holder-upper named for a super ripped Titan?

Answer: Atlas

36. The islets of Langerhans are groups of cells that produce insulin and glucagon located in what organ of the body?

Answer: Pancreas

37. The upper ventral, or chest cavity, containing the heart, lungs, esophagus and other body parts, also goes by what “T” name? It comes from the Latin word meaning “breastplate.”

Answer: Thoracic Cavity

38. Recent research suggests that what organ is not vestigial, as earlier believed, but may act as a reservoir for beneficial gut bacteria?

Answer: Appendix

39. What is the name for the triangular sesamoid bone that covers the front of the joint connecting the femur with the tibia?

Answer: Patella

40. The Hippiatrica is a Byzantine compilation of Ancient Greek texts concerning the care and healing of what animal? This animal was also the subject of the first comprehensive text on the anatomy of a nonhuman species, "Anatomia del Cavallo," written by Carlo Ruini in the 16th century.

Answer: Horse

41. The "chloecyst" is another name for what small organ that stores bile?

Answer: Gallbladder

42. The four major lobes of the human brain are the frontal lobe, the parietal lobe, the occipital lobe, and what T-word one?

Answer: Temporal lobe

43. What "U" bone can be found on the Homo sapien forearm? The bone is very near the radius.

Answer: Ulna

44. The term ‘subcostal' is used for things that are situated or performed below which set of bones?

Answer: The ribs

45. In human anatomy, the "shoulder girdle" is made up of the clavicle and what large, thick bone with a name kinda like a vampire's?

Answer: Scapula

46. In what part of the body can you find the stapedium, the smallest human skeletal muscle?

Answer: Ear

47. Hit this one real quick: synovial fluid helps reduce friction within which articular, bony structures in the body?

Answer: Joints

48. What is the anatomical term for the bones that make up your fingers and toes—a word that takes inspiration from an ancient military formation?

Answer: Phalange

49. While it's long been considered vestigial, recent studies suggest that what internal body part's role might be to assist the immune system by acting as a “safe house” for helpful gut bacteria? We have nothing to add to this question.

Answer: Appendix

50. Starting at the lower back and running down both legs, which nerve is the longest and widest in the human body?

Answer: Sciatic nerve

51. Before it inspired the differently-spelled name of a smash hit medical TV drama, what book by Henry, uh, Something served as the go-to reference material for people trying to learn human anatomy?

Answer: Gray's Anatomy

52. Two layers of membranes called "pleurae" cover the surface of what organs of the human body?

Answer: Lungs

53. The occipital and parietal bones are part of the structure that protects what bodily organ?

Answer: The Brain

54. Loops, whorls, and arches are all assigned numbers in the "Henry classification system," which is used to describe and identify what trackable anatomical structures?

Answer: Fingerprints

55. An area called the "vermilion border" outlines a shape known as the "Cupid's bow" on what external feature of the human body?

Answer: Lips

56. Inguinal hernia repairs fix protrusions of part of what organ into the muscles of the groin? The operation moves the organ back into its original position.

Answer: Large intestine

57. The vermilion border demarcates which facial features from the surrounding skin?

Answer: Lips

58. No joke, which upper long arm bone is connected to your funny bone (that would be your elbow)?

Answer: Humerus

59. What product of the body's lacrimal glands comes in three different varieties, known as basal, reflexive, and emotional?

Answer: Tears

60. What large muscle starts at the base of your neck, extends across your shoulders and down to the middle of your back, and helps with posture and movement? The muscle got its name from its four-sided polygon shape, with two sides parallel.

Answer: Trapezius

61. What is the five-letter name of the oily substance that is produced to protect hair and skin on humans and is considered the main ingredient in the body's "natural oils"?

Answer: Sebum

62. What is the Latin "C" word that is used in English to refer to either an eyelash (when speaking anatomically) or an organelle on eukaryotic cells that projects from a much larger cell body (when speaking microbiologically)?

Answer: Cilium

63. In mammals, what is the common name for the pair of oviducts or uterine tubes through which eggs travel from the ovaries to the uterus?

Answer: Fallopian tubes

64. Because its length is approximately twelve fingers, what portion of the small intestine gets its name from the Latin for "in twelves?"

Answer: Duodenum

65. What 16th century man from Hapsburg Netherlands is considered the father of anatomy, having published the first major textbook on the subject, “On The Fabric Of The Human Body” in 1543?

Answer: Andreas Vesalius

66. In the anatomy of the eye, what is the name of the small depression in the retina, where one's field of vision is centered?

Answer: Fovea

67. What “C” word is the medical term for earwax, the waxy substance secreted in the ears of mammals? Fittingly, it is derived from the Latin word for “wax”.

Answer: Cerumen

68. Humans are defined as being vertebrates because of the presence of a vertebral column, also known as a spine or what “B” word? In metaphor, it is said a coward does not possess one of these.

Answer: Backbone

69. What “C” word describes the lower end of the uterus, which allows for a baby to pass from the womb into the birth canal?

Answer: Cervix

70. Derived from the Latin for “little cavity”, what is the name of the air sacs in the lungs where oxygen is exchanged for carbon dioxide?

Answer: Alveoli

71. What “S” muscle is in the leg’s calf? It arises from the upper tibia and fibula, and the attaches to the Achilles tendon at the heel.

Answer: Soleus Muscle

72. What “A” term is given to the portion of the human ear that is visible to the naked eye? It is a derivative of the Latin word for ear.

Answer: Auricle

73. Which tiny, finger-like units lining the walls of the small intestine help increase its surface area in order to absorb nutrients more efficiently? The micro version of these projections can be found on any kind of cell membrane.

Answer: Villi

74. What “P” membrane-lined cavity sits being the nose and mouth, connecting both to the esophagus? It interestingly rhymes with the larynx.

Answer: Pharynx

75. Also known as pyramidal cells due to their size and shape, Betz cells are located in which part of the human body?

Answer: Brain

76. What “T” soft organ that is located posterior to the sternum processes and matures T cells?

Answer: Thymus

77. What term, also used in relation to planetary motion, means the cavity of the skull that is the location of the eye and its appendages?

Answer: Orbit

78. Blood drains from the liver to the inferior vena cava through which veins?

Answer: Hepatic

79. Also known as birthing custard, what “v” is a waxy white substance found on the skin of newborn babies?

Answer: Vernix

80. Sharing its name with a carnivorous mammal endemic to Madagascar, what “f” is a depression or hollow in a bone?

Answer: Fossa

81. The thumb, heel, and thorax all contain what kind of joint between bones, where one bone surface is concave and the other is convex?

Answer: Saddle joint

82. With an average weight in adults of approximately 3lbs (1.5kg), what is the heaviest gland in the human body?

Answer: The Liver

83. It's not as funny as it sounds, what is the clear gel-like material that fills the eyeball between the lens and the retina?

Answer: Vitreous humor

84. What type of tissue, which forms the outer surface of organs, is one of four basic types of animal tissue, along with connective, muscle, and nervous tissues?

Answer: Epithelial Tissue

85. What's the name of the ridge of cartilage, Latin for "keel," which lies in the trachea between the division of the two main bronchi?

Answer: Carina

86. In medical terminology, “ventral” means toward the front—or anterior—of the body. “Dorsal” refers to the back—or what positional term—of the body?

Answer: Posterior

87. Which subfield of biology involves studying the structures of cells, tissues, and organs by looking at them with a microscope? (Hint: It’s sometimes called microanatomy)

Answer: Histology

88. What type of bone, embedded in a tendon or muscle, gets its name from its small, seed-like size?

Answer: Sesamoid

89. Which skull bones at the part of the nasal cavity make up part of the bottom of the eye sockets, as well as the roof of your mouth? (Hint: Its name comes from the Latin for “palate”)

Answer: Palatine

90. Which bone is the second-largest in the hindfoot, supports the weight of the body, and helps the ankle move? (Hint: The name comes from the Latin for ankle bone—no surprise there).

Answer: Talus

91. What is the other name for platelets, the clear, colorless fragments that are created by bone marrow and regulate blood clotting?

Answer: Thrombocytes

92. In what joint would you find the trochlear notch? It is also known as semilunar notch and greater sigmoid cavity.

Answer: Elbow

93. What small, pea-sized glands in the neck release a namesake hormone that controls the level of calcium in the body?

Answer: Parathyroid Glands

94. Longitudinal melanonychia are dark lines caused by melanin overproduction that show up what hard part of the body?

Answer: Nails

95. Named after a 19th century French physician, which region of the brain's frontal lobe is regarded as the sight of speech production?

Answer: Broca's area, the Broca area

96. Areolar glands, as well as the glands of Moll and Zeis around the eyelid, are glands that secrete what substance that contains wax esters and squalene?

Answer: Sebum

97. What’s the medical term for finger and toe bone—a name that comes from the ancient Greek word for an army formation where soldiers lined up side by side?

Answer: Phalanges

98. What condition occurs when one of more than 150 namesake sacs in the human body becomes inflamed with synovial fluid? The shoulder, heel, knee, and shin are some of the most commonly affected locations.

Answer: Bursitis

99. Also called a furcula, what forked bone that's found in most birds (including turkeys) shares its name with a '90s PBS television series starring a namesake literature-loving Russell Terrier?

Answer: Wishbone

100. Merriam-Webster defines the term "Popliteal space" as "a lozenge-shaped space at the back of" which type of joint that's comprised of the tibiofemoral and the patellofemoral?

Answer: Knee joint

101. The uppermost coxal bone, or hip bone, which has a namesake "crest" at its top point, is known by what name?

Answer: Ilium

102. Because it's the main protein present in connective tissue like bones, skin, and cartilage, what C-thing is the most abundant protein in the human body?

Answer: Collagen

103. What kind of glands of the human body are separated into eccrine (distributed all over) and apocrine (located in a few specific areas like the axillae) glands?

Answer: Sweat glands

104. Conchae, long, curled shelves of bone whose Latin name suggests they resemble shells, can be found within what anatomical structure of the human body?

Answer: Nose

105. What is the name of the ligament that attaches the liver to the wall of the abdomen and divides the liver into left and right lobes?

Answer: Falciform ligament

106. What kind of joint found in the human skeletal system consists of a fibrous capsule that allow for freer movement and is filled with a namesake fluid?

Answer: Synovial Joint

107. What is the name of the pouch located within the peritoneum, which is attached to the appendix and considered the beginning of the large intestine?

Answer: Cecum

108. "Trichology," a name related to conditions like trichostasis and trichomegaly, is the study of what particular anatomical feature on the human body?

Answer: Hair or scalp

109. A CRP test is used to measure the level of protein in the blood made by which organ?

Answer: Liver

110. Which bone of the pelvis has a name that means “sacred” in ancient medical terminology (that is, Greek and Latin)?

Answer: Sacrum

111. From the Latin for "brooch," what bone parallels the tibia and attaches to the head of the tibia via ligaments?

Answer: Fibula

112. The International Museum of Surgical Science in Chicago serves as a macabre dedication to the art of cutting people open, including a surgeon "Hall of Fame." Included in the museum's archives are letters and journals from what famous English statistician who is often considered the founder of modern nursing?

Answer: Florence Nightingale

113. Parotid, submandibular, and sublingual are all types of what gland? The glands are paired, with people normally having two of each type.

Answer: Salivary

114. What single-word term refers to the body’s ability to regulate various physiological processes to keep internal states steady and balanced?

Answer: Homeostasis

115. The human heart has two ventricles, but four ventricles—which circulate the substance known as "CSF"—can also be found in what other organ?

Answer: Brain

116. What is the name for the main arteries in your head and neck that you wouldn’t want to compress since the vessels deliver blood to your brain?

Answer: Carotid

117. The hepatic lobules are constituent units of what organ? They consist of a portal triad, hepatocytes arranged in linear cords between a capillary network, and a central vein.

Answer: Liver

118. The malpighian pyramids, named after Marcello Malpighi, are located in which pair of organs found in vertebrates?

Answer: Kidneys

119. Was the vein, or vain...? Opposed to deep veins, which are far from the surface, what 11-letter word describes a vein found near the surface of the body?

Answer: Superficial

120. Myocyte is the fancy, technical word for cells in what general type of soft tissue?

Answer: Muscle

121. Sounding like it might be made of a shiny metal, what is the name of the substance found in chromosomes that is a complex mixture of proteins, DNA, and RNA?

Answer: Chromatin

122. Which subfield of biology studies the structures of cells, tissues, and organs by looking at them with a microscope? (Hint: It’s sometimes called microanatomy)

Answer: Histology

123. On average, what is the largest muscle in the human body? It's generally responsible for keeping the trunk of the body in an erect posture.

Answer: Gluteus Maximus

124. What joint in the human body is named after a word that was invented by William Shakespeare?

Answer: Elbow

125. Separating humans and some primates from other animals by allowing a specific type of movement, the Trapezium, one of the carpal bones, is found in which human appendage?

Answer: Hand

126. “Brille” is the name of the transparent, immovable disc-shaped skin or scale comprising part of which organs of some animals, particularly snakes?

Answer: Eyes

127. When you lose muscle mass, it’s called atrophy. When there is an increase in muscle mass due to more structural proteins being added to muscle fibers, what other “-trophy” term is used to describe the process?

Answer: Hypertrophy

128. There are four types of tissue in the body: epithelial, muscle, connective, and what’s the fourth “exciting” type?

Answer: Nervous

129. What “S” glands, as opposed to sweat, release fatty oils into the follicular duct that then travel to skin?

Answer: Sebaceous glands

130. What “C” skeletal part is the superior aspect of the skull? It encloses and protects the brain.

Answer: Cranium

131. What word, from a Greek word meaning "crab's claw," describes a scar whose overgrowth of collagen makes it especially large, fibrous, and even shiny?

Answer: Keloid

132. What is the name of the bone of the tarsus that can be found in the heel of the human foot, and whose Latin name translates directly to "heel?"

Answer: Calcaneus

133. Which structure in the vertebral column, which is formed of three to five rudimentary vertebrae, is named after the cuckoo bird due to its resemblance to the cuckoo's beak?

Answer: Coccyx

134. The Iliofemoral ligament (also known as the Y ligament of Bigelow) is found on the outside of what joint? This is the strongest ligament of the body.

Answer: Hip

135. Which small endocrine gland in the brain, whose name derives from it being shaped like a pinecone, produces and regulates melatonin?

Answer: Pineal gland

136. What anatomical structure, Latin for “little brain,” not only helps you control your movements but also assists in regulating your emotions? Fear and pleasure, in particular.

Answer: Cerebellum

137. What anatomical orientation P-word would you use to refer to something that’s near the body’s center? It's the opposite of distal.

Answer: Proximal

138. The supraspinatus, infraspinatus, teres minor, and subscapularis muscles, which provide a range of motion to the arm, make up a group known by what two-word term?

Answer: Rotator Cuff

139. What “A” body parts are the upper chambers through which blood enters the ventricles of the heart? In the left one, blood is received from the lungs, while in the right one, blood is received from venous circulation.

Answer: Atrium

140. Performing important sensory functions, the choroid and the uvea are part of which bodily organ?

Answer: Eye

141. When the palm of the hand is facing up, it’s pronated. What is it called when the arm is turned and the palm is facing down?

Answer: Supinated

142. There are most commonly said to be six main types of freely movable joint - what type of joint is the Glenohumeral Joint?

Answer: Ball and Socket Joint

143. Produced by the adrenal glands, what glucocorticoid hormone and helps control blood pressure, reduce inflammation and increase metabolism of glucose, but is best known as the body's "stress hormone"?

Answer: Cortisol

144. "Histology" is the study of anatomy at the microscopic level. What disgusting sounding term is used for the study of anatomy at the macroscopic level, meaning visible with the naked eye?

Answer: Gross Anatomy

145. What type of tissue found in the human body, which stores energy in the form of lipids and provides cushion and insulation, is also known as "body fat?"

Answer: Adipose Tissue

146. Desmond Morris argued in his 1967 book "The Naked Ape" that what body part, known scientifically as the "lobulus auriculae," may have evolved as an additional erogenous zone?

Answer: Earlobe

147. The "lunula," meaning "litlte moon," is a crescent-shaped area you can find where on the human body? (Two similar responses will be accepted on this one.)

Answer: Fingernail

148. Which organelle found in most eukaryotic cells is named after an Italian physician with the first name Camillo who discovered it in 1897?

Answer: Golgi apparatus

149. A region in the frontal lobe of the brain named for Pierre Paul Broca, a physician studying aphasia in the 19th century, is linked with what important human capability?

Answer: Speech

150. What's the name of the small fold of mucous membrane that attaches the underside of the tongue to the floor of the human mouth?

Answer: Frenulum

151. Since a skeleton can't just tell you how old they are, a pretty reliable indicator of a corpse's age are what upper torso bones that are among the last to completely fuse?

Answer: Clavicle

152. What's the name of the tube of smooth muscle, about 20-30 centimeters in length, that propels urine from the kidney to the bladder?

Answer: Ureter

153. What is the term for the front area of the brain, which is separated into two hemispheres by a fissure? It integrates sensory and neural function, and is the initiation point for voluntary activity in the body.

Answer: Cerebrum

154. The glabella is the smooth area of skin found between which features of the body?

Answer: Eyebrows

155. From the Greek word amugdale—which means “almond”—what’s the medical term for the pair of nuclei set deep in the brain’s temporal lobes that help us make choices, deal with our feelings, and remember stuff?

Answer: Amygdala

156. Beginning with the letter Z, what is the name of the bone that is the protruding part of the cheek as well as forming the lower part of eye socket?

Answer: Zygomatic bone

157. The malleus, incus, and stapes--or, in their familiar English names, hammer, anvil, and stirrup--are three small bones of the ear collectively known by what name?

Answer: Ossicles

158. Muscles in the ear, a small fold in corner of the eyelid, the caecum, and the appendix are all structures in human anatomy often described by what word, meaning they remain even though they no longer fulfill an ancestral function?

Answer: Vestigial

159. What "E" word describes the fold of skin over the inner corner of the eye, an anatomical phenomenon found more frequently in some populations including East Asians, South Asians, and Indigenous peoples of the Americas?

Answer: Epicanthic

160. The organs that make up the human digestive tract move food downward through a process with what name, a motion which is radially symmetrical and moves in a wave down the tubular structures?

Answer: Peristalsis

161. No joke analogy: vitreous is to the lens and retina, as WHAT is to the space between the cornea and the lens?

Answer: Aqueous

162. The retina is the inner part of the eyeball. The middle part is the choroid. Covered by the conjuctiva, what is the name of this outer part? In humans, this whole outer part is white, contrasting with the iris. In other mammals, the visible section of this part matches the iris.

Answer: Sclera

163. The only bone in the human body not connected to other bones is what horseshoe-shaped "H" bone that's also known as the lingual or tongue-bone?

Answer: Hyoid

164. The xiphoid process begins as cartilage and becomes bone as a person grows. It is the smallest and lowest part of which bone?

Answer: Sternum

165. Which anatomical directional term refers to the front of the body or being toward the front of the body? (Hint: Anterior is another term that applies here, but the one we’re looking for is at the other end of the alphabet)

Answer: Ventral

166. Baha hearing devices are good for more than the beach, since Baha is just an acronym for WHAT-anchored hearing aids?

Answer: Bone

167. The three smallest bones in the human body are in the ear. They are the stapes, the incus, and what other hammer-like ossicle?

Answer: Malleus

168. The "mandible" is the medical term for the lower jaw of the human skull; similarly, what word refers to the upper jaw?

Answer: Maxilla

170. What is the name for the anomaly, occurring in humans as well as other animals, in which one has supernumerary digits like fingers or toes?

Answer: Polydactyly (or Hyperdactyly)

171. What areas of the human body, whose name comes form the Latin word for "bay," can be divided into those labeled maxillary, ethmoid, sphenoid, and frontal, among others?

Answer: Sinuses

172. What “E” term describes the membrane that lines the inner surface of the bone marrow cavity? It comes from the Greek, with the meaning “inside bone.”

Answer: Endosteum

173. What nerves are the main nerves of you parasympathetic system, controlling digestion, heart rate, and immune system, among other things?

Answer: Vagus

174. What body cavity contains the body’s posterior organs and structures, like the spinal cord in the lower and the brain in the upper?

Answer: Dorsal

175. Sadly, you won’t find David Bowie in what tiny, bony cavity of the inner ear that helps with balance?

Answer: Vestibular labyrinth

176. The inion is a projection found at the base of which part of the human body?

Answer: Skull

177. What is the two-word name for the anatomical feature at the base of the brain's hypothalamus where the optic nerves of both eyes meet and cross? We'll give you a hint: the first word is "optic."

Answer: Optic chiasm

178. Which spongy bone with a name that means “sieve” in Greek is located between your eyes and separates your nasal cavity from your brain?

Answer: Ethmoid

179. What anatomical term describes the thin membrane made of connective tissue lines the inside of bones?

Answer: Endosteum

180. Hematopoiesis, the formation of new blood cells, most commonly takes place in what semi-solid tissue, whose name may make you think it is a variety of mature zucchini?

Answer: Bone marrow

181. Primarily a blood filter that recycles iron, what purple organ connected to the posterior wall of the stomach is largest collection of lymphoid tissue in the human body?

Answer: Spleen

182. The triangular hollow between the carpal bones of the wrist and hand is often called the "anatomical WHAT box," from the practice of placing powdered tobacco there to be ingested. What word fills in the blank?

Answer: Snuff

183. Deoxygenated blood is returned to the heart through two large veins called the "superior" and "inferior" what?

Answer: Vena Cava

184. The bundle of His is a collection of muscle fibers that transmit electrical impulses to the ventricles of what vital organ? The muscular contractions of the organ occur in measured intervals.

Answer: Heart

185. What part of the eye is also the name of the Greek goddess of rainbows, a song by the Goo Goo Dolls, and a 2001 Oscar-winning film?

Answer: Iris

186. What carpal bone in the wrist is characterized by its wedge shape and hook-like process? One less common name for it, the unciform bone, comes from the Latin for "hook."

Answer: Hamate

187. Cardiac muscle is also known by what name, which represents how it lies between the outer layer of the epicardium and the inner layer of the endocardium?

Answer: Myocardium

188. Moll's gland, also known as the gland of Moll or the ciliary gland, is a small sweat gland that can be found in what six-letter part of the human body?

Answer: Eyelid

189. What type of thin, flat cells, which make up the outer layer of the skin and can be found in the lining of some body cavities, get their name from a Latin word for "scale?"

Answer: Squamous Cells

190. The masseter, temporalis, medial pterygoid, and lateral pterygoid are known as the four "muscles of mastication," an action better known by what common name?

Answer: Chewing

191. Bartolomeo Eustachi was a sixteenth century Italian anatomist who gave his name to a tube connecting the nasopharynx to what organ?

Answer: Ear

192. An important number for cribbage, poker, and bridge players, how many bones are in a pair of human feet?

Answer: 52

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