Muscular System


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Muscular system powerpoint for school.

By: Alex, and mark

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Muscular System

  1. 1. By: Alex and Mark
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  3. 3. What is the Muscular System? The human body has more then 650 different muscles which are attached to the skeleton The main job of the muscular system is to provide movement for the body. The muscular system consists of three different types of muscle tissues skeletal, cardiac, and smooth. Each of these different tissues has the ability to contract, which then allows body movements and functions. There are two types of muscles in the system and they are the involuntary muscles, and the voluntary muscles. The muscle we can control by ourselves are called the voluntary muscles and the ones we can’t control are the involuntary muscles like the heart for example.
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  5. 5. The 3 different muscle tissues  Skeletal muscle tissue: which represents the majority of the muscular tissue in the body. Skeletal muscle is the type of muscle which powers movement of the skeleton as in walking and lifting.  Cardiac muscle: A type of muscle with unique features only found in the heart. The cardiac muscle is the muscle of the heart.  Smooth muscle: Generally forms the supporting tissue of blood vessels and hollow internal organs such as the stomach, intestine, and bladder. So named because of the absence of microscopic lines called "cross-striations" which are seen in the other two types.
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  7. 7. Pictures & Random facts  There are muscles in your hair that you goose bumps.  It takes 17 muscles to smile and 42 muscles to frown.  The hardest working muscle is in the eye.  The largest muscle in your body is the Gluteus Maximus.  The longest muscle in your body is the Sartorious  The smallest muscle in your body is located in the ear, and called the Stapedius.
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  9. 9. Different Muscle Disseases
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  11. 11. Myopathy  Myopathies are diseases of skeletal muscle which are not caused by nerve disorders. These diseases cause the skeletal or voluntary muscles to become weak or wasted. Myopathies are usually degenerative, but they are sometimes caused by drug side effects, chemical poisoning, or a chronic disorder of the immune system.
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  13. 13. Muscular Dystrophy  Muscular dystrophy (MD) is a broad term that describes a genetic (inherited) disorder of the muscles. Muscular dystrophy causes the muscles in the body to become very weak. The muscles break down and are replaced with fatty deposits over time. Muscular dystrophy is a genetic disorder that is characterized by muscle wasting and weakening.
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  15. 15. Rhabdomyolysis  Rhabdomyolysis is the breakdown of muscle fibers resulting in the release of muscle fiber contents into the circulation. Some of these are toxic to the kidney and frequenty result in kidney damage. Many clinical features of rhabdomyolysis are nonspecific, and the course of the syndrome varies depending on the underlying condition.
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  17. 17. Credits   (Google Images)   And then rest to me and mark 