The document discusses the main components and functions of the muscular system. It notes that skeletal muscle, cardiac muscle, and smooth muscle are the three types of muscle in the body. Skeletal muscle is voluntary, striated muscle attached to bones by tendons. Cardiac muscle is involuntary, striated muscle that forms the walls of the heart. Smooth muscle is involuntary, non-striated muscle that lines organs and blood vessels. The muscular system allows for functions like movement, breathing, digestion, and circulation through properties such as contractility, conductivity, elasticity, and automaticity.

1. The Muscular System

2. 40-
50 %

3. Excitability
Contractility
 Conductivity “ ”
 Extensibility

4.  Elasticity
“ ”
 Toncity

5.  Automaticity
Rhythmicity

6. Bioelectrogenesis
(rest)
- mv.
resting membrane potential
electrolytes

8. 2
deep fascia
Striated
muscle
Skeletal muscle

9. Skeletal muscle

10. Cardiac muscle

11. Cardiac muscle

12. Visceral
muscle
Smooth muscle

13. Smooth muscle

14. 1.
2.
3.
4.
5.
6.

15. 7.