Chapter 15-2 Flashcards
Pancreatic lipase
Digest fat
Pancreatic amylase
Digest carbs
Pancreatic nuclease
Digests nucleic acid
Trypsin
Digest protein
Why must proteolytic enzymes be secreted in an inactive form
Because they digest protein
Hormone that stimulates secretion of pancreatic juice with high concentration of bicarbonate ions
Secretin
What is the function of bicarbonate ions
Neutralize acid of chyme
What’s the function of cholecystokinin
Hormone that stimulates secretion of pancreatic juice with high concentration of digestive enzyme
Livers functional units
Hepatic lobules
State the functions of the liver
Metabolizes carbs, lipids, and proteins Stores glycogen, iron, vit A, D, and B12 Filters blood Detoxification Secretes bile
What is the most abundant composition of bile
Bile salts
Why don’t new bile salts have to be made everyday
90% of bile salts are re absorbed by liver
Function of the gall bladder
Stores bile between meals
What causes gall stones
Cholesterol in bile may form crystals
What is cholecystectomy
Surgical removal of the gall bladder
Function of bile salts
Emulsification of fat (breaks it down into smaller droplets)
Aid absorption of fatty acids, cholesterol, and vitamin A,D,E,K
Uppermost part, 10 inches long, most fixed portion
Duodenum
2nd part, 8 ft long
Jejunum
Last part, 12 ft long
Ileum
Double layered membrane that suspends and supports small intestine
Mesentery