What is the main purpose of the muscular system?

Answer 1

• Without muscles, your body wouldn't move. You wouldn't be able to breathe, walk, excrete waste or even have a beating heart without muscles. Though people usually are familiar with the functions of skeletal muscles, most of the body's muscles are not under a person's control.

  Muscles produce heat from their movements, which helps to maintain your body temperature. They also pump lymph, the fluid that surrounds cells, throughout your body. Finally, the muscular system helps us maintain our posture.

Skeletal Muscles

• Skeletal muscles are called voluntary muscles because they can be controlled consciously to help you move. These muscles are connected to the bones with tendons. When your muscles contract, they actually shorten and pull two bones closer together. Flexor muscles cause a joint to bend, while extensor muscles cause the joint to straighten. Ligaments are tissues that hold the bones together so they don't separate when the muscles force them to move.

Smooth Muscles

• Smooth muscles, or involuntary muscles, are not controlled consciously. They are controlled by the autonomic nervous system, and found and in around your circulatory, lymph and intestinal systems. Smooth muscles are not attached to bones, move slowly and can stay contracted for long periods of time. They help push food through your digestive system, and constrict and dilate blood vessels.

Cardiac Muscle

• Cardiac muscle is the muscle tissue found in the heart. This muscle tissue allows the heart to push blood into the arteries.

How the Muscles Work

• The brain sends signals through the nervous system to motor neurons on muscles telling them to contract. Nerve impulses then cause the muscle cells to contract, which can make a heart beat or an arm bend.

Answer 2

to maintain posture, joint stability and heat production

Answer 3

The muscular systems job is to move the body, keep bodily fluid moving, and pumP blood.

Answer 4

The main purpose of the muscular system is to provide movement for the body. The muscular system consists of mucles

Answer 5

this muscles are distinct from the muscles of the heart and of other hollow organs, which move fluids (blood,urine) or other substances (such as food) along definite pathways within the body.

Answer 6

The muscular system moves our body so that we might go about our day obtaining the necessities of life.

Answer 7

The three functions of the muscular system are: 1) Heat production, 2) motion, and 3) posture and stability.