4. F
F
F
F F 2 F F F
(esophageal sphincter muscle) F F F (pyloric sphincter muscle)
F F F F
|------|
20µm
F
F F
1. F F F
2. ( )
F
3. F
F
4. F (casein)
F F
4
9. F
F F F
F F F
F F
F F
() ()
() F F
F F F
F 12
9
10. F F F
F F FF F F F
F
F F
→
F → →
F→ F F
F→ → → →
F F
F F F F
1. F
2. F F F F
3.
4. F F F F F
F F F F
1. F F
2. F FF
3. F F F F
4. F F F
F F
F F 1.5 F
12 F F F F F F
F F F F F F F F
F F F F F
10
11. F F
F F F F F F F F
F F
1. F F F
2. F
3. F
4. F F
5.
F F
11