Muscular System 600 Muscles 3 types of muscles

Muscular System 600 Muscles

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

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

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

Types of Muscles cont. Cardiac Muscles: Only found in the heart. n Involuntary. n Makes up 3% of your muscles. n By age 70 heart contracts 2. 5 billion times (assume resting heart beat). n

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

Pectorals Trapezius Deltiods Triceps Abdominals Biceps Obliques Brachioradialis Gastrocnemius / Calf Quadriceps

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

Body Movements n Flexing of the hamstring.

Body Movements cont. n Extension of the quadriceps.

MORE MUSCLES

Trapezius Deltoid Tricep Latissimus Dorsi Gluteus Maximus Hamstring Gastrocnemius