1.

,

, ,

,

2.

3.

1 1

4.

1 1

5.

6.

1 = microfilament , 2 = muscle fiber , 3 = myofibril , 4 = muscle

1 / 2 / 3 / 4 3 / 1 / 2 / 4 2 / 3 / 1 / 4 1 / 3 / 2 / 4

7.

2

2

2

8.

ATPCa++

9.

10.