Body Systems and Organization 2

17 terms by twihardgleek 

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Epithelial

covers and protects underlying tissue

Connective

joins, supports, protects, insulates, and nourishes organs

Muscular

cells contract and relax for movement

Nervous

sends electrical signals through the body

Skeletal Muscle

enables bones to move; triceps

Smooth Muscle

moves food through digestive system; stomach

Cardiac Muscle

pumps blog around body; heart

Hair follicles

tiny sac where the hair forms in the dermis

Oil gland

release oil that keeps hair flexible and waterproofs epidermis

Fat cells

store fat

What is unique about your hair and nails?

They are both made out of the same stuff and are nonliving.

Involuntary Examples

cardiac, digestive

Voluntary examples

skeletal

How do muscles work?

In pairs. Extensor and Flexor.

How does Aerobic Exercise help?

Strengthens heart and increases endurance.

How does Resistance Exercise help?

Strengthen skeletal muscles.

Major functions of skin?

-Keeps water in your body and foreign particles out
-Lets you feel the outside world
-Helps regulate your body temperature
-Gets rid of wastes

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