The Nervous Systems Justin

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The Nerveous System

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The Nervous Systems Justin

  1. 1. The Nervous Systems The Sub Title
  2. 2. Nerve cells and Astrocyte <ul><li>Humans have about 100 billion neurons in their brain alone! While variable in size and shape, all neurons have three parts. </li></ul>
  3. 3. What does Nerve Cell look in a body? <ul><li>This is what the Nerve looks like </li></ul>
  4. 4. Nervous System’s <ul><ul><ul><ul><ul><li>The nervous system is a network of specialized cells that communicate information about an surroundings and itself. It processes this information and causes reactions in other parts of the body. It is composed of neurons and other specialized cells called (plural form glia) that aid in the function of the neurons. The nervous system is divided broadly into two categories: the peripheral nervous system and the central nervous system . Neurons generate and conduct impulses between and within the two systems. The peripheral nervous system is composed of sensory neurons and the neurons that connect them to the nerve cord, spinal cord and brain, which make up the central nervous system . In response to stimuli, sensory neurons generate and propagate signals to the central nervous system which then processes and conducts signals back to the muscles and glands . The neurons of the nervous systems of animals are interconnected in complex arrangements and use electrochemical signals and neurotransmitters to transmit impulses from one neuron to the next. The interaction of the different neurons form neural circuits regulate an organism's perception of the world and what is going on with its body, thus regulating its behavior. Nervous systems are found in many multicellular animals but differ greatly in complexity between species. </li></ul></ul></ul></ul></ul>
  5. 5. This is what nerve’s should and would look like In humen body

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