The human muscular system is made up of over 600 connecting muscles. All of the muscles work together in sync to make your body move in several different ways.
None of the body systems can work without muscles and your muscles can’t work without your other body systems so that means that all of your body systems need each other to work and make your body function correctly.
Your muscles need protein, nutrients, and oxygen to move and work. Then the circulatory system carries those essential particles to your muscles from the digestive and respiratory systems. That is when your circulatory system carries the leftover waste back to the original systems to be discharged from your body. Your nervous system runs the whole show by telling your different systems to make this whole process happen
Your muscles are made up of body tissue which consists of very very small fibers which make up your muscles and you also have ligaments which help your muscles move in the right way. Each of your muscles are responsible for their own special job. All of your muscles contract to provide motion when the brain sends a signal through the nervous system which are stimulants. These stimulants tell your muscles to move your arms, legs and other muscles move your eyelids and they all work in sync to make you walk and talk. There are some muscles in which you have no control over like the muscles in your internal organs like your heart, stomach, and other organs in all of your body systems.
There are three different types of muscular tissues. There are the Smooth, the Skeletal, and the Cardiac muscular tissues. Smooth muscles are made of spindle-shaped cells. Smooth muscles are found in the skin, internal organs, reproductive system, major blood vessels, and excretory system. Skeletal muscles are composed of long fibers surrounded by a membranous sheath, the sarcolemma. Since the Skeletal muscles are under control by whom ever they belong to are called voluntary muscles. This muscle is attached to two or more bones which are then attached to the skeleton by tendons. For example, head and neck muscles; contraction of these muscles produces facial expressions and head movements. They are also responsible for speech and swallowing. Skeletal muscles are the main muscles which move your body.
Muscles nearly always work in coordinated groups; contraction of one muscle is accompanied by relaxation of another, while other muscles stabilize nearby joints. Then the last of the muscle types is the Cardiac Muscle or the involuntary muscles. Cardiac muscles are not under conscious control they do not react by a persons decision or movement. and are connected to the nervous system which are stimulated by autonomic impulses. Cardiac muscles are found in your internal organs like the heart or the intestine. For example; they include muscles that propel food through the intestine and those that control sweating and blood pressure.
Muscles that are properly exercised react to stimuli quickly and powerfully. As a result of excessive use muscles may have an abnormal increase of an organ or tissue in the muscle cells. That is why if you work out at the gym your muscles become larger, but if you overwork your muscles they decrease sometimes to a fraction of its original size and becomes substantially weaker
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