What is the role of the muscle system?
The primary role of the muscle system is that the other organs of the body move by means of muscles. The muscle system also plays an important role in digestion, heart contraction and blood flow, organ protection, heat production and body shape. The muscles were assigned with Latin names to describe their shape, location, action and size. For example, deltoide means a triangular muscle, abdominis means the abdominal muscle, flexor means flexive muscles and minimus means the smallest muscles.
The contractions of the cells that make up the muscles are responsible for the production of movement. Most of the muscles meet their function in pairs, each muscle with a bite, which is against the action of another muscle. This means that the contraction of one muscle results in the relaxation of another muscle. For example, when bending the knee, muscle muscles behave when quadriceps is released. When the knee is straightened, when hamstring relaxes, a four -headed summary closes.
Three types of muscles - skeletal, heart and smooth muscles - form a muscle system. The task of more than 640 skeletal muscles is to produce voluntary bone movement and to provide the general shape of the body together with the bones. Skeletal muscles, which make up 40% of the body weight, are also known as striped muscles due to stripes or strips that indicate skeletal muscle fibers. The bones are attached to the origin and insertion of skeletal muscles by tendons. Origin is the end of a skeletal muscle that has a small or no movement while inserting is the end that moves.
heart muscles produce involuntary movement in the heart. This means that the heart muscles are automatically downloaded without any stimulus from the nervous system. In addition, the heart muscles are constantly withdrawn throughout the whole person. Circles in heart muscles are not as clear as skeletal muscle fibers. The heart muscle contractions pump blood into all parts of the body.
involuntary contractions of smoothThe muscles allow the food to go through the digestive tract during digestion. Smooth muscles can therefore be found lining esophagus, stomach and intestines, although they are also present in blood vessels and bladder. Unlike skeletal and heart muscles, stripes cannot be found in smooth muscles. The contraction of smooth muscles is much slower than the contraction of skeletal muscles.
The muscle system and skeletal system cooperate in the production of body movements; One will not be able to do his work without another. Bones are responsible for the movement of the body to different positions, but they cannot move alone. Only muscles can move bones with contractions.