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Central Nervous System

Central Nervous System. By: Jennifer Bush. Function. The central nervous system function is mainly to send and interrupt messages throughout the body. It allows us to react to stimuli, sends chemicals that give us feelings, and enables our body to function.

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Central Nervous System

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  1. Central Nervous System By: Jennifer Bush

  2. Function • The central nervous system function is mainly to send and interrupt messages throughout the body. • It allows us to react to stimuli, sends chemicals that give us feelings, and enables our body to function. • The nervous system consists mainly of two parts. These parts being the brain and the vertebrae also known as the spinal cord. • Another major component in the central nervous system are neurons. Neurons are cells that send and receive messages throughout the body so that the body can react to stimuli in and outside of the body.

  3. Parts of the Central Nervous System The Brain BRAIN: Function and parts The brain has two hemispheres; the right hemisphere and the left hemisphere. It consist of three major parts: - Brain Stem: the brain stem controls the involuntary movements of the body. - Cerebellum: the cerebellum controls the coordination of the body. - Cerebral: the cerebral controls thought, intelligence and reasoning skills. It is also categorized into 4 lobes; Frontal- controls speech and thought. Parietal- controls temp., pressure, and stimuli. Opsipital- controls vision and sight. Temporal- controls hearing and memory. Brain Stem

  4. Parts of the Central Nervous System The Neuron Neurons: Functions and parts Neurons send and receive messages throughout the body and are found through out the central nervous system. The parts are: - Dendrites: receive messages from other cells - Soma: acts as a body for the neuron. - Nucleus: the nucleus controls the cell and its functions - Axon: the axon is the tail of the neuron and consists of two parts: Myelin Sheath- made up of Schwann cells , the myelin sheath allows messages to move through the axon faster. Axon Terminal- the axon terminal receives a message that it then sends to other cells.

  5. A Comparison of the Rat and Human Brain

  6. Works Citied • http://www.cerebromente.org.br/n07/fundamentos/neuron/parts_i.htm • http://seys-science.wikispaces.com/nerve+cell+g

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