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major function of small intestine
mucosal folds, villi
give a total absorptive area for the small intestine
- accomplished by 1 of 4 mechanisms:
- 1. active transport
- 2. passive diffusion
- 3. facilitated diffusion
- 4. pinocytosis or phagocytosis
movement of materials across a cell membrane occuring by means of chemical activity that alters membrane permeability
American Dietetic Association;
also: American Diabetes Association
tissue composed of stored fat cells
- a protein made by the liver
- The main protein in human blood and the key to the regulation of the osmotic pressure of blood.
- (keeps the fluid from the blood from leaking out into the tissues)
normal range is 3.4 - 5.4 g/dL
(grams per deciliter)
A serum albumin test
measures the amount of this protein in the clear liquid portion
of the blood.
-Test can help determine if a patient has liver disease, kidney disease, or if the body is not absorbing enough protein.
Decreased albumin may also be explained by malnutrition or a low protein diet.
- enzyme that helps digest carbohydrates
- produced mainly in the pancreas and the glands that make saliva.
normal range is 23 to 85 U/L
(units per liter)
METABOLISM: Anabolism and Catabolism
- Anabolism (constructive metabolism) and Catabolism (destructive metabolism)
- anabolism (those reactions that convert small molecules into large),
- and catabolism (those reactions that convert large molecules into small)