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.
Voluntary- Brain sends message to muscle. You control the movements.

4. Occuli
Facial Buccinators
Sternomastoid
Pectoralis Major
Bicep Brachii
Abdominals
External Oblique
Sartorius
Quadriceps
Extensor Digitorum
Tibialis Anterior

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

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. Types of Injuries Strain- Muscle “pull” or “strain”
Tearing a muscle fiber(s), followed by bleeding or swelling of muscle
Muscle Cramp- Prolonged contraction of muscle, ion imbalance

9. Muscle Terms Flexion- Movement that reduces a joint angle
Extension- A movement that increases a joint angle

10. Body Movements
Flexing of the hamstring.

11. Body Movements cont.
Extension of the quadriceps.

12. Muscle Pairs
Your muscles work in teams to move your body. An example of this is your Bicep and Tricep.

13. Trapezius
Deltoid
Tricep
Latissimus Dorsi
Gluteus Maximus
Hamstring
Gastrocnemius