Short Essay On The Nervous System

The Nervous System is the control center and one of the most important systems in the human body. The Nervous System is comprised of two parts: The Central and the Peripheral Nervous Systems, which divide into smaller sections. (“Nervous System, sciencedaily.com”) Each part of the Nervous System has jobs that keep humans alive and well. Every single movement that bodies make, millions of neurons fire off signals up to 268 miles per hour to indicate to the brain that something happened! (“15 Fascinating Facts You Didn’t Know About Your Brain, safelaunch.org”) It is so vital to human life that almost nothing can survive without it.
Almost every animal on Earth has a Nervous System, which includes the brain, and, many, a spinal cord, and networks of nerves that run through bodies. Humans are no exception. The first part of the Nervous System is the Central Nervous System. “Protected within the skull, the brain is composed of mostly of the cerebrum, cerebellum, and brainstem.” (“Anatomy of the Brain, mayfieldclinic.com”) The cerebrum is the biggest part in the human brain, and is divided into lobes including the frontal lobe, parietal lobe, occipital lobe, and temporal lobe. Each lobe has its own tasks. For example, “the frontal lobe is associated with reasoning, planning, parts of speech, movement, emotions, and problem solving, the parietal lobe is associated with movement,

It works with:
• The Skeletal System: it provides calcium that the brain needs, the skull protects the brain, the vertebrae protect the spinal cord, sensory receptors in joints between bones send signals about body position to the brain, and the brain regulates the position of bones by controlling muscles.
• The Circulatory System: the heart brings blood to the brain, it sends information to the brain about blood pressure, cerebrospinal fluid flows into the blood supply, and the brain regulates heart rate and blood