Chapter 10 - Gastrointestinal System Vocabulary Flashcards
Adventitia
The muscular layer of the wall of the alimentary canal
Absorptive cells
Cells that produce digestive enzymes and absorbed digested food
Alimentary canal
The mouth, pharynx, esophagus, stomach, small intestine, large intestine, rectum, and anus
Ampulla of vater
Opening in the duodenum into which the common bile duct and pancreatic duct drains
Anal canal
The short tube at the end of the rectum that contains two circular sphincter (internal and external), which help regulate the passage of stool
Anus
The distal orifice of the alimentary canal, where stool passes from the body
Appendicitis
Inflammation of the appendix
Ascending colon
One of four portions of the colon; it extends upward from the cecum
Bile
A digestive enzyme produced in the liver and stored in the gallbladder
Carboxypeptidase
A pancreatic enzyme that digests proteins
Cecum
The first part of the large intestine, into which the ileum opens.
Chemical digestion
Digestion of food by enzymes in the stomach and small bowel
Chief cells
Cells in the stomach mucosa that produce pepsinogen, an important enzyme in the digestion of food
Cholecystitis
Symptoms from cholelithiasis; also called gallbladder attack
Cholecystokinin
A hormone produced in the intestine that stimulates the production of pancreatic secretions and gallbladder contractions and inhibits gastric motility
Cholelithiasis
The presence of gallstones
Chyme
The name given to the substance that leaves the stomach once food is digested; it is a combination of all the eaten foods with added stomach acids
Chymotrypsin
A pancreatic enzyme that digests proteins
Colon
A portion of the gastrointestinal system extending from the small intestine to the rectum that maintains water balance by absorbing and excreting water; also called large intestine.
Colonoscope
A fiberoptic scope used in the visual examination of the colon
Crypts
Tubular glands located in the colon, which contain many mucus-producing goblet cells
Cystic ducts
The route through which the gallbladder releases bile
Descending colon
One of the four portions of the colon; it extends from the splenic flexure to the sigmoid colon
Diaphragm
Large dome-shaped muscle used for respiration that represents the boundary between the abdominal and the thoracic cavities
Digestion
The mechanical and chemical breakdown of foods and the absorption of resulting nutrients by body’s cells.