Science Quiz / Eponymous Anatomy A-Z

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Can you name the human anatomical structures that are named after a person (A-Z)?

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DescriptionAnatomic StructureLetter
Thick tendon connecting the muscles of the posterior leg to the heel bone, permitting plantar flexion of the foot.A
Paired mucus-secreting glands located to the left and right of the posterior end of the vaginal opening.B
Non-ciliated cuboidal cells found in the bronchioles of the lung; they secrete a component of surfactant and can act as stem cells to regenerate respiratory epithelium.C
Narrow space separating hepatic sinusoids from hepatocytes, through which plasma components are transported from the former to the latter.D
Tube linking the nasopharynx to the middle ear, permitting pressure to equalize between them.E
Structure through which eggs can travel from the ovary to the uterus.F
Major vein that receives blood from the brain and in turn empties into the straight sinus.G
Portion of the nephron that mainly serves to set up a concentration gradient in the renal medulla; leads from the proximal to the distal convoluted tubule.H
Alternate name for the tympanic nerve, a branch of cranial nerve XI carrying sensory fibers to the middle ear.J
Highly vascular area of the nasal septum where four different arteries meet; responsible for the majority of nosebleeds.K
Structures within the pancreas that have endocrine function, producing insulin, glucagon, and other hormones.L
DescriptionAnatomic StructureLetter
Sebaceous glands located within the areola of the female breast, which may give it a bumpy appearance, especially during pregnancy.M
Clumps of rough endoplasmic reticulum, which characteristically stain dark blue with aniline dyes, found within neurons.N
Muscular valve that controls the flow of secretions through the structure listed under 'V'.O
Specialized fast-conducting fibers in the ventricles of the heart, which permit synchronized ventricular contraction.P
These uninsulated gaps between segments of myelin sheaths cause nerve action potentials to travel in a 'saltatory', or periodically jumping, fashion.R
Structure that drains aqueous humor from the anterior chamber of the eye; flow through it is reduced in the disease glaucoma.S
Small muscle marking the boundary between the upper and lower GI tracts, specifically between the duodenum and jejunum.T
Short tube formed by the confluence of the pancreatic duct and the common bile duct, emptying into the duodenum via the structure listed under 'O'.V
An anastomosis of blood vessels that gives rise to the major arteries supplying blood to the brain and nearby structures.W
Clump of neuroendocrine cells found at the bifurcation of the aorta; of unclear physiologic importance, but notable because it can give rise to tumors.Z

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