digestive system (last one :D) Flashcards
digestion
breaking down large nutrient molecule into smaller molecules to be absorbed aka hydrolysis
alimentary canal
tubular portion of the digestive tract that leads from mouth to anus
peristalsis
rhythmic waves of muscular contraction in the walls of certain tubular organs
gastric glands
glands within stomach wall that secrete gastric juice
pepsin
protein splitting enzyme the gastric glands secrete
pepsinogen
inactive form of pepsin
intrinsic factor
substance that gastric glands produce to promote absorption of vitamin B12
gastrin
hormone secreted by the stomach lining to stimulate secretion of gastric juice
chyme
semifluid mass of partially digested food that passes from stomach to small intestine
bile
fluid secreted by liver and stored in gallbladder
gallbladder
sac like organ associated with the liver that stores and concentrates bile
emulsification
breaking up fat globules into smaller droplets by the action of bile salts
duodenum
first portion of small intestine that leads from stomach to jejunum
jejunum
portion of small intestine located between duodenum and ileum
ileum
portion of the small intestine between jejunum and cecum
mesentery
fold of peritoneal; membrane that attaches an abdominal organ to abdominal wall
cecum
pouch like portion of the large intestine attached to small intestine
feces
material expelled from digestive tract during defecation
frenulum
fold of tissue that anchors and limits movement of a body part
trypsinogen
breaks down proteins into amino acids and is secreted from the pancreas
