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The stiffening of body muscles after death(postmortem). Caused by a biochemical change after death.

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The ability of muscles to automatically complete processes. For example the heart does not require active thought to beat, it does so automatically.

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This allows muscles to react to stimulus. Stimulus can be delivered from a hormone or a motor(outside) stimulus.

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Muscles' elasticity allows for ability to stretch, and reach it's full range of motion. While still being able to return to it's original length when relaxed.

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Muscles' ability to stretch. When one muscle contracts, other muscles mus extend in order to move.

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Muscle cells' ability to shorten themselves. This allows muscles to pull.

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Calcium facilitates the interaction between actin and myosin. This makes calcium and essential part of muscle contraction.

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A type of motor protein found in muscles. Myosin plays an important role in muscle contraction and movement.

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A type of protein found in muscle. Actin forms the contractile filaments of muscle cells.

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A theory describing the molecular basis of muscle contraction. Brought better understanding of the mechanism that allow muscles to contract.

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Voluntary muscles that attach to bone, and make movement possible. They have striated, tubular, multi-nucleated fibers.

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Involuntary muscles that make up the walls of the heart. They have striated, tubular, branching, uni-nucleated fibers.

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Involuntary Muscle that lines the walls of internal organs. They have narrow, tapered, rod-shaped cells and non-striated, uni-nucleated fibers.

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Condition of intermittent muscle spasms. Caused by a malfunction of the parathyroid glands and a calcium deficiency.

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A bacterial infection that causes painful muscle contractions. Often causes neck and jaw muscles to lock, making it diccicult to swallow.

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Clonic muscle spasms involves muscles involuntarily contracting and relaxing within rapid succession. Meanwhile, tonic muscle spasms involve involuntary muscle contractions that last a period of time.

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Involuntary and painful contractions of a muscle. Usually caused by fatigue or overexertion.

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Muscle fatigue is a symptom commonly associated with exhaustion, usually following strenuous activity or exercise. Your muscles will experience decreased ability to perform, as well as soreness.

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1) Muscles hold body upright.
2)Make movement possible.
4)Aids in blood flow, through veins.
5) Moves fluid through ducts and tubes in other body systems
-Also generates body heat.

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The thin casing that surrounds organs, blood vessels, bone, nerve fibers, and blood vessels. This fibrous membrane covering supports and separates muscles

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Narrow band of nonelastic, dense connective tissue. Connects muscle to bone.