{"id":2474,"date":"2024-03-18T16:26:17","date_gmt":"2024-03-18T16:26:17","guid":{"rendered":"https:\/\/edb.luf.temporary.site\/wp1\/?p=2474"},"modified":"2024-04-16T03:16:38","modified_gmt":"2024-04-16T03:16:38","slug":"muscle","status":"publish","type":"post","link":"https:\/\/humanhealthandhygiene.com\/wp1\/2024\/03\/18\/muscle\/","title":{"rendered":"Muscle"},"content":{"rendered":"\t\t
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Introduction to the Muscular System<\/h4>

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The muscular system is composed of specialized cells called muscle fibers. Their predominant function is contractibility. Muscles, attached to bones or internal organs and blood vessels, are responsible for movement. Nearly all movement in the body is the result of muscle contraction. Exceptions to this are the action of cilia, the flagellum on sperm cells, and amoeboid movement of some white blood cells.<\/p>

The integrated action of joints, bones, and skeletal muscles produces obvious movements such as walking and running. Skeletal muscles also produce more subtle movements that result in various facial expressions, eye movements, and respiration.<\/p>

In addition to movement, muscle contraction also fulfills some other important functions in the body, such as posture, joint stability, and heat production. Posture, such as sitting and standing, is maintained as a result of muscle contraction. The skeletal muscles are continually making fine adjustments that hold the body in stationary positions. The tendons of many muscles extend over joints and in this way contribute to joint stability. This is particularly evident in the knee and shoulder joints, where muscle tendons are a major factor in stabilizing the joint. Heat production, to maintain body temperature, is an important by-product of muscle metabolism. Nearly 85 percent of the heat produced in the body is the result of muscle contraction.<\/p>

Source: National Institutes of Health
Wikipedia
Kingsofthegym
CDC
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Calves<\/a><\/h4>\n
The calf is the back portion of the lower leg in human anatomy. The muscles within the calf correspond to …
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Hamstrings<\/a><\/h4>\n
In human anatomy, a hamstring is one of the three posterior thigh muscles (from medial to lateral: semimembranosus, semitendinosus and …
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Glutes<\/a><\/h4>\n
The gluteal muscles are a group of three muscles which make up the buttocks: the gluteus maximus, gluteus medius and …
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Forearms<\/a><\/h4>\n
The forearm contains many muscles, including the flexors and extensors of the digits, a flexor of the elbow (brachioradialis), and …
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