Central Nervous System Essay
The central nervous system and the peripheral nervous system are the two main components of the nervous system.The central nervous system are made up of the brain, spinal cord, and nerves. There are three types of nerves sensory, inter, and motor nerves. The brain is the “Boss” of an Organism 's body everything is sent to the brain. The nerves are the “workers/messengers” they send the messages to the brain to make sure that everything is ok with it. The spinal cord is the pathway to give the brain the messages from the body or the other way around.The brain has a left and right hemisphere: the left controls logic and reason; the right controls creativity and more emotions.
The skin consists of the three main layers: epidermis, dermis, and hypodermis.In those three layers it contains hair follicles, sweat glands, fat, connective tissue, and blood vessels. This is by far the largest organ in the body. The skins main function is to protect the organs on the inside from things on the outside. It also functions to retain the inside fluids,
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The main components involved in this system in heart, blood, and blood vessels. Blood is a oxygen and nutrients filled fluid that has plasma, red blood cells, white blood cells, and platelets and removes all waste materials from body tissues. Without the brain the circulatory system does not work, heart function and fluid circulation does not work unless they are triggered by the brain.
The digestive system is a group of organs working together to convert food into energy and basic nutrients to help the entire body. This system consists of the salivary glands, pharynx, mouth, esophagus, liver, gallbladder, stomach, pancreas, small and large intestine, and the anus. The brain controls drinking and feeding behavior and controls muscles for eating and elimination. The in return the digestive system sends sensory information to the
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