Digestion Flashcards Preview

Exercise Nutrition > Digestion > Flashcards

Flashcards in Digestion Deck (16):
1

Ghrelin

promotes food intake (acts on hypothalmic)

2

Bolus, Chyme

bolus- lump of food swallowed at one time

chyme- bolus processed by stomach

3

Pyloric sphincter, Ileocecal valve

pyloric- stomach to small intestine

ileocecal- small to large intestine

4

Function of s. intestine and what increases absorption

-95% absorption in duodenum+jejunum

Folds of Kerkring- increase by 3x
Villi- increase by 10x
brush border- increase by 20x

5

Functions of gallbladder

stores, releases bile
bile facilitates absorption of fat

6

functions of pancrease

secretes sodium bicarbonate as buffer

7

Gastrin

stims hcl prod in stomach

8

secretin

stims h2o and bicarbonate secreation in pancreatic juices

9

CCK

stims enzymes in pancreatic juices/ gallbladder contractions

10

GIP, GLP-1

inhibits gastric motility

11

Carb digestion steps(Enzymes)

mouth- a amylase
s intestine- pancreatic amylase, maltase, sucrase, lactase

monosaccarides enter capillaires and delivered to liver

12

Lipid digestion steps(enzymes)

mouth- lingual lipase
stomach- lingual lipase, gastric lipase
s intestine- bile, pancreatic amylase

-creates micelle which is absorbed by villi
FA + glycerol enter bloodstream bigger go I'm lympatic system

13

Pro digestion steps(enzymes)

Stomach- activates protease enzyme pepin

s intestine- absorb AA and transfered to liver

14

Where does most vitamin intake occur

jejumum+ ileum

15

what regulates Gastric emptying

contractions of stomach, nervous/horomone signals, acidity etc

16

Probiotics vs Prebiotics

Pro- live bacteria in food, non pathogenic

pre- nourish good bacteria already in gut ex yogurt