Nervous+system+EP

1. What are the two major divisions of the nervous system? 2. What are the three types of neurons? 3. What are the three parts of a neuron? 4. What is a nerve impulse and how does it spread (this requires a long answer). 5. Since neurons don't physically touch, how is an impulse transmitted from one neuron to the next? 6. What structures compose the central nervous system? 7. What are the two main functions of the spinal cord? 8. What are the four major parts of the brain and the general function of each?
 * The central nervous system and the peripheral nervous system.
 * a Sensory neuron
 * interneuron
 * motor neuron
 * cell body
 * dendrites
 * an axon
 * Its transmitted by chemical energy from the axon.
 * The spinal cord
 * The brain.
 * It provides communication to the brain
 * it gives communication the the peripheral nerves.
 * the brainstem- Connects the brain to the spinal cord.
 * the cerebellum- Controls balance and cordination.
 * the diencephalon-Controls appetite, blood pressure, thirst, tempertaure and sexual arousal.
 * the cerebral hemispheres-Controls different parts of the body.