GIT SA Flashcards
What is Digestion?
breaking down of food
What is absorption?
when nurtients get into our system by crossing epitehlium in our small intestine
What is Metbolism?
when the liver converts nutrients into energy.
What is required for the absorption of carbohydrates, protein, and fats
we need pancreatic and brush border enzymes from the small intestines. fat additionally needs bile from liver. And a large SA of small intestine
nutrients absorbed then travels to the liver to be metabolsied.
When will malabsorption occur?
- Reduction in SA of small intetsine
- pancreatic & brush border enzymes impairement
- Bile impariment
How can Reduction in SA of SI occur (& brush border ezymes)?
Crohns disease, ulcers, some cancers, some food intolerances that cause atrophy of villi
How can Pancreatic Enzymes be impaired?
chronic pancreatitis, kidney stones, tumours, & dehydrated sections
How can Bile production be impaired?
liver failure, kidney stones, tumours, & dehydrated sections