Muscular System By: Ella Mitchell, Gage Griffith, Jacob Erickson

Muscles expand and contract

Muscles:

Muscles allow movement

Enables voluntary and involuntary movement

Involuntary- movements the occur without you knowing it

Voluntary- movements that you control

3 Types of Muscle
Smooth Muscle

Acts on the lining of the body's passageways and hollow internal organs

-Found in the digestive tract, lining of blood vessels

- Involuntary

Skeletal Muscle

Muscles attached to bone that cause body movements

-Voluntary

Skeletal muscles often work together to perform contrasting movements

Cardiac Muscle

Muscle that forms the walls of the heart

- Response for the contraction of your heart

Involuntary

Flexor- Muscle that closes a joint

Extensor- Muscle that opens a joint

How To Build Strong Muscles

Exercise regularly

Exercise the right way, use the weight room correctly

Eat foods that are high in protein

Protein- are the building blocks of muscle

Examples- meats, milk, eggs

Muscular System Problems
Muscle Strain

Is painful stretching or tearing of muscle fibers caused by overexcertion.

To heal, ice for the first 24 hours, then apply heat to the strain.

Muscle Cramp

When muscle contracts spasmodically and involuntarily.

May occur from using a Muscle for too long.

To heal gently stretch muscle and message knot.

Muscular Dystrophy

A crippling disease characterized by wasting away of skeletal muscles.

Muscle cells are unable to function properly.

Symptoms- muscle weakness, difficulty standing or walking, frequent falling.

Cannot be cured, but early detection is key as muscle weakening can be delayed.

Thanks for listening!

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