The purpose of the muscular system

Human Biology

The body is covered by muscles, composed greater than 650 of them. The purpose of the muscular system is for the body to move, maintain posture, and produce heat. You will discover three different types of muscles tissues; cardiac, smooth, and skeletal. There are also two types of muscles are in the body; voluntary and involuntary. Those people which we can move will be the voluntary muscles; those which move on their own, like the heart, are involuntary muscles.

When muscles move, they nearly have other muscles helping out. When one muscle flexes, its opposite relaxes, for instance; the tongue. The tongue works with other muscles in the mouth so that people can chew, swallow, and talk. Another good exemplory case of a unison muscle would be the heart. The heart is the most important muscle inside our body. It's what pumps blood in and out of the veins and arteries, and is what gives the body oxygen. The heart is not only composed of cardiac muscle tissues. Additionally it is joined with skeletal muscle. Without skeletal muscles, veins would not be capable of geting blood moving. They would have to rely on gravity and momentum o get through your body parts it requires to. As mentioned, the heart is an involuntary muscle. People don't need to think about making their heart beat; it happens naturally, like breathing.

Muscles make up 40% of your body's weight. The nervous system sends signals to the muscular system which cause the muscles to contract. Muscle contractions are what create movement. Skeletal muscles are a voluntary muscle. An example of a skeletal muscle would be an arm muscle. A teacher tells you to increase your hand, which signal goes from your ears, to the human brain, to your arm resulting in you raising your arm consciously. Cardiac muscle tissues, unlike skeletal muscle tissues, are linked together and not mounted on bones. Smooth muscle mass accocunts for the walls around most of the human body's organ systems. This tissue is handled by both the body's hormones and nervous system.

The three main jobs of the muscular system are to keep body heat regulated, keep up with the body's balance, and create movement. Homeostasis is the balance and stability of the body; the body's way of keeping consistency. The muscular system plays a big part in the human body's homeostasis. Even when the body is at rest, muscles are constantly moving to keep their tone constant and to keep up with the body's regular temperature. Muscles are made of fibers that have oxygen, which is rapidly consumed by movement. During exercise the muscles need more energy than usual, and this energy comes from glucose. The glucose, or sugar, is turned into ATP. During this process the muscles us up all the oxygen. That's when the muscles convert the glucose into lactic acid, which is what hurts after a day of excessive exercise. As your body's way of homeostasis, when you're cold, you shiver. It is because the body is telling the muscle to shake rapidly. The quick movements of the muscles will be the body's way of keeping your body temperature regular.

This diagram shows most of the main muscles of your body. Muscles are locating all around the body, from the most notable of the head to underneath of the feet. Neck muscles are being used to move the head in any particular direction. The shoulder muscles (or trapezius) stabilize the top and shoulders, the arms muscles move the arms and shoulders, the stomach muscles are for moving your torso, and your quads are for walking and balance. The main muscles in the body will be the ones which run along the spine (the latissimus dorsi). These muscles help support the body and help with standing upright. The most significant muscle in the human body is the gluteus maximus, or the buttock. As unflattering as that sounds, this muscle is really as important as every other muscle in the torso. The buttocks are what keep carefully the legs moving, protect the pelvic bones whenever we sit down (or fall down). This muscle is also in charge of keeping the body standing straight.

The face is covered in muscles. These muscles control a sizable variety of movements, especially across the mouth and eyes. You will discover over 30 muscles in the face which show looks such as a smile, frown, grimace, or surprise. Eye muscles do the most moving in the entire body. Studies show that the attention muscles move over 100, 000 times each day. But eye muscles don't stop moving when you attend sleep. During REM (rapid eye movement) the eyes move at a rapid pace, which create your dreams.

As important as the muscular system is, it is merely as susceptible to diseases, disorders and cancers as any other system of the body. Diseases which can affect the muscular system are fibromyalgia, muscular dystrophy, and tendonitis. A majority of muscle disease cause muscle weakness, fatigue, and deterioration of muscle fibers. Disorders which make a difference the muscular system are usually due to the immune deficiency, poison, or genetic cause. Disorders of the muscles that are connected to the immune system can often lead to tumors. Cancer in the muscular system is rarely heard about, nevertheless they do exist. Muscles are made up of cells, just like the rest of the body. This means there is absolutely no exception for the muscles becoming cancerous. Some examples of muscular cancers would be myosarcoma or abdominal cancer. Myosarcoma is cancer of the muscle tissues, leading to tumors. Abdominal cancer is a cancer which can arise in any organ of the abs cavity of the body (ovaries, intestines, the stomach muscles themselves est. . . . ). Symptoms of muscle cancer are; weight loss, jaundice, loss of appetite, vomiting, and/or large mass in the stomach area. Treatment for muscular cancers is always to surgically remove the cancer, chemotherapy, or radiation.

Other mishaps with muscles may be bruising or puncture wounds, but the great part about muscles is that they are in a position to regenerate. Which means that they are able to grow back tissues that they have lost. All skeletal muscles can handle regenerating. In cases of large injuries to muscles, fibrosis occurs. When fibrosis occurs, the muscle fills in the space of missing tissue with scar tissue. After fibrosis, the muscle then undergoes a remodeling stage. This makes the muscle mass more flexible and moveable. This may take time, and so message therapy will be a good ideal during the remodeling stage. The muscular system truly is an extremely amazing system of our body!

Summary: The muscular system plays a major role in the body. Homeostasis occurs every moment of our own lives in the muscular system. Muscles are constantly moving and are the main role in peoples' everyday transportation and communication. Exactly like any system of the body, the muscular system is vunerable to disease, disorders and cancers however the muscular system can repair itself and continue doing its job.

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