explain briefly the functions of muscular system.
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Answer:
The muscular system is an organ system consisting of skeletal, smooth and cardiac muscles. It permits movement of the body, maintains posture and circulates blood throughout the body. The muscular systems in vertebrates are controlled through the nervous system although some muscles (such as the cardiac muscle) can be completely autonomous. Together with the skeletal system, it forms the musculoskeletal system, which is responsible for movement of the human body.
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The main functions of the muscular system are as follows:
1. Mobility
The muscular system's main function is to allow movement. When muscles contract, they contribute to gross and fine movement.
2. Stability
Muscle tendons stretch over joints and contribute to joint stability. Muscle tendons in the knee joint and the shoulder joint are crucial in stabilization.
The core muscles are those in the abdomen, back, and pelvis, and they also stabilize the body and assist in tasks, such as lifting weights.
3. Posture
Skeletal muscles help keep the body in the correct position when someone is sitting or standing. This is known as posture.
4. Circulation
The heart is a muscle that pumps blood throughout the body. The movement of the heart is outside of conscious control, and it contracts automatically when stimulated by electrical signals
5.Vision
Six skeletal muscles around the eye control its movements. These muscles work quickly and precisely, and allow the eye to:
- maintain a stable image
- scan the surrounding area
- track moving objects
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