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Circulatory system

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Jerry Sliger

on 25 February 2014

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Transcript of Circulatory system

Muscular System
Muscular System
Muscle: an organ that can relax, contract, and provide the force to move your body parts
Voluntary muscles: muscles that you are able to control.
Involuntary muscles: muscles that you are not able to consciously control.

Our muscle cells produce enough heat everyday to boil almost 2 pints of water for an hour.
when you shiver, your muscules contract involntariy this releases energy that keeps your body warm. you use your muscles to stand still. Try it. Stand as still as youn can. Gravity will make you sway, but your muscles will will pull you straight. Your tireless heart beats 4500 times each hr.You've just used about 30 muscules. Muscles control your eyelids, nostril and brow.
The blood vessels and veins all connect to the heart.
Myasthenia gravis is a chronic autoimmune disease that results in muscle weakness and fatigue. A breakdown of the neuromuscular junction causes the brain to lose control over these muscles, which can result in difficulty breathing and swallowing,
Amyotrophic lateral sclerosis (ALS), often referred to as "Lou Gehrig's disease," is a progressive neurodegenerative disease that affects nerve cells in the brain. It is a fatal disease that affects 30,000 Americans at any one time and leads to a loss of control over voluntary muscle movement, making it increasingly difficult to swallow, breath and speak. The disease ultimately causes
paralysis and death.
The hammer is a type of simple machine called a LEVER. It helps your bones lever your body weight.
The muscles that move bones are SKELETAL MUSCLES.
They are attached to bones by thick bands of tissue called TENDONS.
Cardiac Muscle: is found only in the heart.
They work together to show the slightest changes in your emotions
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