Class Notes (1,100,000)
CA (630,000)
UTSC (30,000)
BIOC33H3 (100)
Lecture

BIOC33H3 Lecture Notes - Phosphorylation, Appendectomy, Gas Gangrene


Department
Biological Sciences
Course Code
BIOC33H3
Professor
Stephen Reid

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The small intestine
- Absorption of most ingested substances: nutrients, water, vitamins, and minerals
- Most absorption in the first 20% of the SI
- Large SA for absorption
oContains villi that has an artery, vein, capillaries, blind lymphatic lacteal and
innervations
oSurface epithelial cells are replaced every appox. 3-5 days (17 billion new
cells/day)
The large intestine
- Water and ion absorption
Disorders of the large intestine

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- Appendicitis = blockage and inflammation of the appendix
oRupture is usually fatal
- Diverticulosis = formation of small protruding pouches in the colon that bulge outwards
from weak spots
- Diverticulitis = infection and inflammation of the divertuculi
- Intense abdominal pain on the left side
- Distended belly
- Caused by low fibre diet
- Perforation = rupture of the intestine
- Peritonitis = body cavity infection

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- Impacted faeces and fecalith
o
- Colonoscopy
- Bristol stool chart (not on the exam) [slide 9]
The pancreas
- Acinar cells enzymes
- Pancreatic amylase (carbohydrates)
- Proteolytic zymogens (proteins)
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