1. The document describes the multi-step process of digestion that takes place in the human digestive system. 2. Digestion involves both mechanical and chemical breakdown of food, beginning in the mouth and continuing through the stomach and small intestine. 3. Enzymes produced in the salivary glands, stomach, pancreas, and small intestine help break down food into smaller molecules that can be absorbed into the bloodstream.

1. F
F
F
F
F F
F F
F F (plaque)
F
1

2. F
F (salivary gland)
3 F F F F 1 F F 1 F
F F F
F F F
1-1.5 F F -
(ptyalin) (amylase) F F F F
F
F
1. F F F
2. F F F F
3. F F F
2

3. F F F F F
F F
() ()
(peristalsis)
3

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

5. F (papain)
F (bromelain) F
FF F
F F
5

6. F
F F
F F
F F 3 F F
F
F F F F
1.
F F F
F F
( F )
F ( F ) F
( F )
2. F F
3. F
4. F F
6

7. F
F F F
1. F
2. F
3. F
F F F F
F
F F
F F
( F ) ( F )
F
F
F
( F )
F
F
7

8. F F
F F
F F( )
+
+
+
8

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