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Rigor mortis is a postmortem change resulting in the stiffening of the body muscles due to chemical changes in their myofibrils. Rigor mortis helps in estimating the time since death as well to ascertain if the body had been moved after death.

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Automaticity: the ability to spontaneously depolarize and generate an action potential. Contractility: the potential to do work, often measured as the ability of muscle tissue to develop tension or shorten.

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Excitability is the ability to respond to a stimulus, which may be delivered from a motor neuron or a hormone. Extensibility is the ability of a muscle to be stretched or extended. Elasticity is the ability to a muscle to return to its original length when relaxed.

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Tissue elasticity is the ability to stretch a muscle to reach its full range of movement without restriction. Different types of tissues can be found within the body including soft tissues and connective tissues. Tissues often become restrictive and inelastic resulting in an increase in muscle tightness and pain.

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Extensibility is the ability of a muscle to be stretched. For instance, let's reconsider our elbow flexing motion we discussed earlier. In order to be able to flex the elbow, the elbow extensor muscles must extend in order to allow flexion to occur. Lack of extensibility is known as spasticity.

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Contractility is the ability of muscle cells to forcefully shorten. Contractility allows muscle tissue to pull on its attachment points and shorten with force. ( muscles can only pull, never push.) Excitability is the ability to respond to a stimulus, which may be delivered from a motor neuron or a hormone.

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Calcium's positive molecule is important to the transmission of nerve impulses to the muscle fiber via its neurotransmitter triggering release at the junction between the nerves (2,6). Inside the muscle, calcium facilitates the interaction between actin and myosin during contractions (2,6).

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Myosin is a motor molecule that works to move the cell. Myosin is a special protein that converts adenosine triphosphate (ATP), a molecule that cells use in order to live and work, into mechanical energy (energy for work). This will then generate force and movement.

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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 cell..

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The sliding filament theory describes the mechanism that allows muscles to contract. According to this theory, myosin (a motor protein) binds to actin. The myosin then alters its configuration, resulting in a "stroke" that pulls on the actin filament and causes it to slide across the myosin filament.

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Skeletal muscle fibers occur in muscles which are attached to the skeleton. They are striated in appearance and are under voluntary control.

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Cardiac muscle is an involuntary striated muscle tissue found only in the heart and is responsible for the ability of the heart to pump blood.

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Smooth muscle, also called involuntary muscle, muscle that shows no cross stripes under microscopic magnification. ... Smooth muscle tissue, unlike striated muscle, contracts slowly and automatically. It constitutes much of the musculature of internal organs and the digestive system.

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A condition marked by intermittent muscular spasms, caused by malfunction of the parathyroid glands and a consequent deficiency of calcium.

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Tetanus is an infection caused by bacteria called Clostridium tetani. When the bacteria invade the body, they produce a poison (toxin) that causes painful muscle contractions. Another name for tetanus is “lockjaw”. It often causes a person's neck and jaw muscles to lock, making it hard to open the mouth or swallow.

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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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Otherwise known as muscle cramps, spasms occur when your muscle involuntary and forcibly contracts uncontrollably and can't relax. These are very common and can affect any of your muscles. They can involve part or all of a muscle, or several muscles in a group.

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1.Muscles hold the bode erect.
2.They make movement possible.
3.They can move food through the digestive system
4.Muscle movement aids the flow of blood through veins.
5.Moves fluid through the ducts and tubes associated with the body system

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Fascia is a thin casing of connective tissue that surrounds and holds every organ, blood vessel, bone, nerve fiber and muscle in place. The tissue does more than provide internal structure; fascia has nerves that make it almost as sensitive as skin.

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A tendon is a fibrous connective tissue which attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. ... A ligament is a fibrous connective tissue which attaches bone to bone, and usually serves to hold structures together and keep them stable