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Skeletal System
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system responsible for providing shape and support for the body,
protection for internal organs, and production of blood cells
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Function of Bones
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provide support and shape, provide place for attachment of muscle, and to
produce blood cells
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Cartilage
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soft, flexible tissue found at the ends of bones, ears, nose and other areas of the
body.
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Ligaments
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a band of tissue that connect bone to bone
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Tendon
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connect bones to muscles
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Bone
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made of minerals such as calcium, they move when skeletal muscle attached to them contract or get shorter, and, larger ones produce
blood cells in the marrow
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Joints
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a place where two or more bones meet
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Ball and Socket Joint
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very mobile, the end of one bone is shaped like a ball, the end of the other bone is shaped like a cup, the “ball” sits in
the “cup” and is able to rotate.
Examples include the hip and the shoulder
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Hinge Joint
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one bone moves like a door swinging on its hinges.
Examples: elbow and the knee
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Pivot Joint
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a bone rotates or “pivots” around another; we have pivot joints in our arms, and at the base of our skull
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Gliding Joint
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bones “glide” past each other; we have them in our wrists and feet
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Muscular System
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the system responsible for providing movement in our body. Movement occurs by the muscles
getting shorter (contracting) and relaxing
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Skeletal Muscles
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muscles that make our bones move, they make our bones move by getting contracting and pulling on the bones. These
muscles are voluntary.
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Cardiac Muscles
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muscle found in the heart, These muscles are involuntary
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Smooth Muscle
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muscle found in many internal organs, including the digestive system and blood vessels. These muscles are involuntary.
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Voluntary Muscles
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muscles that you consciously think about using in order to get them to work – the
skeletal muscles are these
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Involuntary Muscles
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muscles that you do not have to think about using – smooth and cardiac muscle are this type