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Where is the bundle of His?

Heart. The Bundle of His (pronounced hiss) is a nerve bundle that carries electrical signals from the AV node ("pacer") to the apex of the heart so that the heart muscle can contract upwards. Wilhelm His, Jr. was a Swiss anatomist and cardiologist.

Where is Shrapnell's membrane?

Ear. Shrapnell's membrane is the floppy upper portion of the eardrum. Henry Jones Shrapnell was an English otologist (ear doctor) who first described the eardrum as having a taut portion and a floppy portion; the latter was named for him.

Where is Schlemm's canal?

Eye. Schlemm's canal transfers aqueous humor from the eye's anterior chamber to the bloodstream. Friedrich Schlemm was a German anatomist who was jailed for digging up a dead woman to study her bones!

Where is Meckel's diverticulum?

Small intestine. Meckel's diverticulum is leftover tissue from a fetus' digestive tract. Only about 2% of adults have this. Johann Friedrich Meckel was a German anatomist who studied birth defects.

Where is the ampulla of Vater?

Bile duct. The Ampulla of Vater is an enlarged portion of the liver and pancreatic ducts where they join the small intestine. An ampulla is an enlarged portion of a canal or duct. Abraham Vater, a German anatomist, was the first to describe this duct.

Where is Calot's triangle?

Abdomen. Calot's triangle is an area near the gall bladder formed by the cystic artery, the cystic duct, and the hepatic duct. It was named for Jean-Francois Calot, who described it in his 1891 doctoral thesis.

Where is Alcock's canal?

Pelvis. Alcock's canal is a passage in the pelvis through which, ironically, the pudendal arteries, veins, and nerve pass. No surprise that it's also called the pudendal canal. Sir Rutherford Alcock was a British physician who served in the Carlist War, but was better known for serving his government in the Far East.

Where are the cords of Billroth?

Spleen. The Cords of Billroth contain phagocytes that consume dead blood cells. Christian Albert Theodor Billroth was a Viennese surgeon who is considered to be the father of modern abdominal surgery. An amateur musician, he was also a friend of Johannes Brahms.

Where might you have a Schatzki ring?

Throat. A Schatzki ring is a small ring of tissue that causes a constriction at the bottom of the esophagus; they occur in about 5% of the population. If irritated, they may cause difficulty swallowing. They are detected via radiology; first done by German-born radiologist Richard Schatzki.

Where are the zonules of Zinn?

Eye. A zonule is a small zone or band. The Zonules of Zinn hold the lens of the eye in place. Johann Gottfried Zinn was a German anatomist who wrote the first detailed anatomical treatise of the eye.