Muscular System Research Paper

The muscular system is the system of the body that contains smooth, skeletal, and cardiac muscle tissue. This system contains a variety of functions including movement of the body and of materials throughout the body, maintenance of posture, and heat production. Muscles are the only tissue in the body that have the ability to contract and therefore move the other parts of the body. The muscular system is important because without it, life would completely stop. Muscles produce not only voluntary movements but involuntary movements such as breathing, digestion of food, pumping blood etc. which are all things that our body must do to stay alive. The nervous system contains billions of neurons that are in constant touch with each other for the purpose of monitoring and regulating your internal and sensory functions. The central …show more content…
The spinal cord behaves like an information superhighway, speeding signals from the brain to the PNS and vice versa. Like the muscular system, the PNS, consisting of all the roads that ultimately lead to the superhighway, has a dual function. One part is somatic, meaning under conscious control, and the other is autonomic, or outside of conscious control. Nerves work together with muscles your conscious mind relays this command to your CNS, which translates it into electrical impulses. These are then channeled through the somatic part of your PNS to the nerves responsible for controlling the necessary muscles. When the messages arrive, a chemical (acetylcholine) is released from the nerve endings, stimulating the membranes of muscle fibers and causing them to contract. This takes about 1 millisecond to happen. Normally, your conscious mind is unable to speed up or slow down your heart