Anatomy and Physiology of the Nervous System

The body is a physical structure composed of the skeletal, muscular, endocrine, digestive, circulatory, respiratory, excretory, and the one I am representing, nervous, systems, yet the most priceless and vital one that surely should not be laid off is the nervous system. The nervous system consists of two sections. The first is the central nervous system (CNS). The CNS, which coordinates the activities of the entire nervous system, is composed of the brain (cerebrum, cerebellum, and medulla), and the spinal cord that is connected, via the brain stem, to the brain; nerve cells carry impulses from it. The CNS is responsible for sending sensory messages to all body parts. The cerebrum, in control of involuntary actions including memory, thought and senses, has two hemispheres; the right controls the left body and the left controls the right. The medulla, located at the brain stem, controls involuntary activities, such as breathing and heart rate. A person’s motor function and muscle coordination, balance, is associated with the cerebellum.

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The second section is the peripheral nervous system (PNS).

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The PNS, which can be further subdivided into the somatic and autonomic nervous systems, carries impulses to and from the CNS. It is made up of nerves outside of the Central Nervous System. Th...

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...intaining of homeostasis, thus one’s existence, it should not be laid off. Doing so would not lower the body’s energy expenses; it would cause havoc that could only be controlled by a total body shutdown.

In closing, the nervous system is needed by all, for it is what controls every body system. When one needs to digest, or is in need of more blood and air, the nervous system is the one that takes control; it communicates these needs to the body parts that can fulfill them. If this system were taken out of the body, needs could not be met, and eventually the body would perish; the body would not know how to react, or even be able to function at an acceptable rate. This decision is not in my hands, but I fully believe that my argument supports that laying off the nervous system is not the right choice; this is not the way to lower bodily energy expenses.