Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/13

Click to flip

13 Cards in this Set

  • Front
  • Back
function
function:
- conversion of macromolecules into absorbable micromolecules via mechanical and chemical means
- diet--> circulatory system
3 processes
3 processes:
1. motility: smooth m contractions crush, mix, and propel contents= mechanical digestion
2. secretions: digestive enz, mucus, ions and fluid create aqueous phase= chemical digestion
3. absorption: transport of nutrients, water, ions across epithelium into blood or lymph
control systems
control systems:
- hormonal and neural:
1. adjust GI activity to quality/ quantity of incoming food
2. facilitate communication b/w GI sections
mouth
mouth:
- mechanical breakdown of food
- addition of saliva as lubricant
esophagus
esophagus:
- conduit mouth--> stomach
stomach
stomach:
- chem digestion of proteins
- liquefecation of food
- start of protein digestion
liver/ bile
liver/bile:
- provision of bile salts for digestion/ absorption of fats
pancreas
pancreas:
- provision of major digestive enzymes
SI
SI:
1. provision of enzymes
2. chemical digestion
3. absorption of nutrients and water
LI
LI:
1. absorption of water
2. feces formation
3. bacterial fermentation: major spp differences, all spp
Rumen/ forestomach
rumen/ forestomach:
- bacterial fermentation of nutrients
- absorption of fermentation products
proteins
proteins:
4-20aa: oligopeptide
> 20 aa: polypeptide
lipids
lipids:
- average 18-20 aa