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Stiffening of the joints and muscles of a body a few hours after death, usually lasting from one to four days.

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Flexible but inelastic cord of strong fibrous collagen tissue attaching a muscle to a bone.

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A flat band of tissue below the skin that covers underlying tissues and separates different layers of tissue. The fascia also encloses muscles.

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- The muscular system Creates movement.
- It protects the organs
- The cardiac muscle pumps blood
- Smooth muscle aids digestion
-  Smooth muscle ensures blood flow

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Muscle fatigue is the decline in ability of a muscle to generate force. It can be a result of vigorous exercise but abnormal fatigue may be caused by barriers to or interference with the different stages of muscle   contraction.

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A sudden involuntary muscular contraction or convulsive movement.

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Clonic Spasms refer to alternating involuntary muscular contraction and relaxation in quick succession. Tonic spasms are rigid muscle contractions that last a period of time.

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Tetanus is a serious illness caused by Clostridium bacteria.  The bacteria can enter the body through a deep cut, like those you might get from stepping on a nail, or through a burn.The infection causes painful tightening of the muscles, usually all over the body. A vaccine can prevent tetanus.

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Overly stimulated nerves cause involuntary muscle cramps and contractions, most often in the hands and feet. Tetany can be the result of an electrolyte imbalance or low calcium.

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Muscle tissue in which the contractile fibrils are not highly ordered, occurring in the gut and other internal organs and are involuntary. Appearance:

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Cardiac muscle also called heart muscle or myocardium is an involuntary, striated muscle that constitutes the main tissue of the walls of the heart. Appearance:

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It is a form of striated muscle tissue which is under the voluntary control of the somatic nervous system. Most skeletal muscles are attached to bones by tendons.

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The sliding filament theory explains the mechanism of muscle contractions. According to the theory overlapping actin and myosin (thick) filaments of muscle fibers slide past the actin (thin) filaments during muscle contraction, while the two groups of filaments remain at relatively constant length.

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A protein that forms (together with myosin) the contractile filaments of muscle cells, and is also involved in motion in other types of cells.

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A fibrous protein that forms (together with actin) the contractile filaments of muscle cells and is also involved in motion in other types of cells.

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Contractility is the ability of muscle cells to forcefully shorten.

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Calciums presence in your muscles enables movement. Contraction and relaxation of your muscles occur because of rapidly changing concentrations of calcium inside your muscle cells, a biochemical process referred to as the calcium cycle

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Extensibility is the ability of a muscle to be stretched.

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Elasticity is the ability to recoil or bounce back to the muscle's original length after being stretched.

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Exitability is the ability the muscles have to respond to a stimulus, which may be delivered from a motor neuron or a hormone.

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Automaticity is defined as the ability of heart cells to spontaneously depolarize and generate an action potential.(healthy ventricular muscle cells, and the majority of atrial muscle cells do not display automaticity.)