1. Muscular System 600 Muscles

2. 3 types of muscles
Smooth Muscles:  Which include the muscles of internal organs and blood vessels.  These muscles move involuntary. 
Cardiac Muscle:  Found only in the heart and also involuntary.  
Skeletal Muscles:  Are voluntary  and help you move.  

3. Muscle Movement Involuntary: Automatically move without you knowing.
Examples?
Voluntary: Brain sends message to muscle.  You control the movements. 

4. Types Of Muscles
Smooth Muscle: Digestive organs, Makes up 7-8% of your muscles. 
Involuntary:

5. Pectorals
Trapezius
Deltiods
Triceps
Biceps
Rectus abdominus
External Obliques
Quadriceps
Brachioradialis
Gastrocnemius

6. Types of Muscles cont. Cardiac Muscles: Only found in the heart.
Involuntary.
Makes up 3% of your muscles.
By age 70 heart contracts 2.5 billion times (assume resting heart beat).

7. Types of Muscles cont. Skeletal Muscles- Makes up 90% of your muscles.
Voluntary- These are the muscles that you can move.

8. Muscle Terms Flexion- Movement that reduces a joint angle
Name or show a joint that you can flex.
Extension- A movement that increases a joint angle
Name or show a joint that you can extend.

9. Body Movements
Flexing of the hamstring.

10. Body Movements cont.
Extension of the quadriceps.

11. More muscles

12. Trapezius
Deltoid
Tricep
Latissimus Dorsi
Gluteus Maximus
Hamstring
Gastrocnemius