Digestion Flashcards
1
Q
epithelial tissue
A
covers surfaces of the body
2
Q
connective tissue
A
supports and protects
3
Q
muscle
A
permits movement
4
Q
nervous
A
transmits nerve impulses
5
Q
lysozyme
A
break down bacteria
6
Q
mucus
A
lubricates and hold bolus together
7
Q
amylase
A
breaks down starch
8
Q
last function of saliva
A
enhance perception of flavor
9
Q
epiglottis function
A
close over the larynx to prevent food from entering the trachea
10
Q
upper esophageal sphincter
A
muscular tube that extends to the stomach
11
Q
gastric rugae
A
allow stomach to expand when food enters
increase surface area for absorption
12
Q
glucose-dependent insulinotropic peptide
A
slow the release of chyme into the small intestine
13
Q
liver
A
- produces bile
- aids in fat digestion and absorption by acting as emulsifier
14
Q
pancreas
A
- sodium bicarbonate (neutralizes acidic chyme)
- lipases
- proteases
- amylase
15
Q
gallbladder
A
- bile storage
16
Q
segmentation
A
- inner circulation muscles contract in small intestine
- back and forth action
- mix chyme with digestive juices
- chyme in contact with absorbing cells
17
Q
peristalsis
A
- coordinated wave of contraction and relaxation
- outer longitudinal muscles push chyme forward
18
Q
enterocytes
A
- most abundant in SI
- “brush border” - lined with microvilli
- secrete enzymes and absorb nutrients
19
Q
goblet cells
A
- mucus secretion in SI
20
Q
enteroendocrine
A
secrete hormones in SI
21
Q
paneth
A
- synthesize and secrete antimicrobial peptides and proteins in SI
22
Q
A
