Question

I Want essay on muscles​

Answer 1

Answer:

Muscles make up 40% of the 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 raise your hand, and that signal goes from your ears, to your brain, to your arm resulting in you raising your arm consciously. Cardiac muscle tissues, unlike skeletal muscle tissues, are linked together and not attached to bones. Smooth muscle tissue makes up the walls around most of the human body’s organ systems. This tissue is controlled by both the body’s hormones and nervous system.