Digestive System Flashcards
1
Q
Salivary enzymes
A
Amylase
Starch —> carbs
2
Q
Gastric folds
A
Rugae
3
Q
Gastric juice
A
Pepsin and HCL
4
Q
Mr St Martin & Dr Beaumont
A
What gastric juices are made of Food is broken down at different rates (proteins = fast) Temperature affects digestion Mood affects digestion Sickness affects digestion
5
Q
Cell secreting HCL
A
Parietal cells
6
Q
Chief cell
A
Pepsinogen
7
Q
Gastric gland
A
Gastrin
8
Q
Gastric juice feedback
A
HCL + pepsinogen + gastrin in negative feedback loop
Gastrin stimulates production after bloating due to eating
9
Q
Pepsinogen
A
Zymogen
Active form: pepsin
Activated by HCL
10
Q
Acidic chyme after stomach
A
Enters duodenum
stimulates secretin production (stimulates pancreas)
Pancreas secretes pancreatic juice
bicarbonate ions neutralize acid
11
Q
Bile salts
A
Emulsify lipid aggregates
12
Q
Lipase
A
Break down glycerides into glycerol and fatty acids
13
Q
Small intestine
A
Jejunum Glucose absorption (active (Na+) + passive)
14
Q
Small intestine anatomy
A
Villi
Microvilli on enterocytes
15
Q
Fatty acid destination
A
Endoplasmic reticulum Forms chylomicrons (exocytosis into lymph vessels)
