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A soft gland lying across the back of the upper abdomen that makes digestive juice and the hormones insulin and glucagon.
Across the back, head in the duodenal C, tail to the spleen: exocrine juice down the duct, insulin and glucagon from the islets; head cancer blocks the bile duct.
Inguinal Canal
An oblique passage in the lower abdominal wall transmitting the spermatic cord (male) or round ligament (female).
Peritoneum
The serous membrane lining the abdominal cavity and covering its organs.
The Anal Canal
The terminal part of the gut, whose upper and lower halves differ in origin, lining, blood supply, nerve supply and drainage, divided by the pectinate line.
The Parotid Gland
The largest salivary gland, wrapped around the ramus of the mandible and famous for the structures that pass through it.
The Portal Venous System
The system of veins that carries nutrient-rich blood from the gut to the liver before it returns to the heart, with escape routes if it becomes blocked.
The Duodenum
The first and shortest part of the small intestine, a C-shaped tube curving around the head of the pancreas that receives bile and pancreatic juice.