digestive Flashcards
1
Q
enzymes
A
proteins used as catalysts to speed up chemical reactions
2
Q
macromolecules (biological)
A
proteins, lipids, carbs, nucleic acids
3
Q
monomers
A
sugars, amino acids, fatty acids, nucleotides
4
Q
alimentary canal
A
GI tract
5
Q
peristalsis
A
involuntary movement of food through digestive tract
6
Q
GI tract layers-4
A
- mucosa
- submucosa
- muscularis externa
- serosa
7
Q
parietal cells
A
release hydrochloric acid
8
Q
chief cells
A
release pepsinogen
9
Q
enteroendocrine cells
A
regulate stomach and release serotonin, histamine, and somatostatin
10
Q
somatostatin
A
inhibit secretions
11
Q
G cells
A
make gastrin
12
Q
digestive phases-3
A
- cephalic
- gastric
- intestinal
13
Q
long reflex arc
A
when signal travels to brain and back
14
Q
short reflex arc
A
signal zips around within stomach own nervous system
15
Q
small intestine-3
A
- duodenum- chemical digestion
- jejunum- nutrient absorption
- ileum- vitamin absorption
