NervousSystemBA


 * Nervous System BA**

1. What are the two major divisions of the nervous system? Nueroglia and neurons

2. What are the three types of neurons? Intereons, motor an sensereons

3. What are the three parts of a neuron? The axon,dendrites, cell body

4. What is a nerve impulse and how does it spread (this requires a long answer). Nerve impulses contain and coney the nevous system

5. Since neurons don't physically touch, how is an impulse transmitted from one neuron to the next? Inpulses are transmitted through a small electrical current.

6. What structures compose the central nervous system? The spinal cord and brain itself

7. What are the two main functions of the spinal cord? It allows the Peripheral Resceptors to pass to the brain

8. What are the four major parts of the brain and the general function of each? The cerebrum, brain stem, cerebellem and diencphalon. The cerebrum inacts all the actions carried out in the brain. The brain stem contains the medulla oblongota, pons, and midibrain. The gets sensory from joints, eyes muscles and ears. The diencphalon maintains homeostasis.