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this is a property of of cardiac cell the muscle cells of the heart are unique and responsible for the electrical stimulation that leads to mechanical function .

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refers to the capacity of muscle to shorten forcefully . the muscle responds to stimulation by nerves and hormones .

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muscle has four major functional characteristics. this one means that they can be stretched.

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tightening or shortening the muscle . it happens when muscle tissue contracts when its thick and thin filaments slide past eachother .

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when the brain signals the muscle to contract, the body will pull calcium from the blood into the muscle cells. the calcium binds with the troponin and tropomyosin move and activates the actin and myosin to contract the muscle

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myosin works closely with actin that creates filaments. myosin is a special protein that converts ATP into mechanical energy. its best known for their role in muscle contraction.

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actin is a protein found in eukaryotic cells that form flaments that produce a main component of the calls supporting cytoskeleton. it is essential for cellular functions like the mobility and contraction of cells .

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its the explanation for how muscles contract to make force . the actin and myosin filaments within the sarcomeres of muscle fibres bind to make cross bridges and slide past one another, creating a contraction.

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skeletal muscle is another one of the three major muscle types. skeletal muscle is a form of striated muscle tissue. it has voluntary control of the somatic nervous system. most of them are connected to bones by tendons

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cardiac muscle is heart muscle. its a involuntary muscle that is found in the walls of the heart, specifically the myocardium. its one of the three major types of muscle.

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smooth muscle generally forms the supporting tissue of blood vessels and hollow internal organs like the stomach, intestine, and bladder. smooth muscles move food through the digestive tract. its made of narrow spindle shaped cells with a single centrally located nucleus.

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tetany is a condition that is usually a result to low blood calcium aka (hypocalcemia). its characterized by spasms in the hands, feet, cramps, spasm of the larynx and overactive neurological reflexes

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tetanus is also known as locked jaw. its a serious infection caused by clostridium tetani. this infection can cause severe muscle spasms, serious breathing difficulties, and can ultimately become fatal.

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in the tonic phase the entire body becomes rigid. tonic-clonic seizures can last for a varied amount of time. it is also called a grand mal seizure.

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in the clonic phase there is uncontrolled jerking. tonic-clonic seizures can be followed by headache, confusion, and sleep. they can last seconds or several minutes.

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a muscle spasm is a contraction of a muscle that causes a great amount of pain. when the facet joints of the spine become injured or inflamed the muscles supporting the spine can spasm and can cause a large amount of back pain and limitation of movement.

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

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5 basic functions of the muscular system 

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5 basic functions of the muscular system 

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the muscular system creates movement the primary function is to produce voluntary gross and fine movements. the muscular system protects the organs. the cardiac muscle pumps blood throughout your body. smooth muscle aids digestion. smooth muscle ensures blood flow

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fascia is the internal connective tissue that wraps around organs, it provides support and holds parts together. it looks like a very thin spider web. it connects layers of muscle and surrounding all internal body tissues

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a tendon is a tough band of fibrous connective tissue that connects to the muscle to the bone. a tendon is capable of withstanding tension. a tendon is made up of fibers, cells of various shapes and ground substance.