Nervous System

4. supportive cells that provide nutrition, insulation, & help with signal transmission
6. receives stimuli via millions of sensory receptors throughout the body
8. brain and spinal cord (integration and control center)(abbreviate)
10. generates & transmits nerve impulses; conducting region
11. covers long axons to protect and electrically insulate them to increase the speed of nerve impulse transmission
14. transmit info from sensory receptors
15. the main receptor of signals; input region
19. extensions from the cell body
20. activates effector organs to cause response

1. the largest part of the brain, made of left and right hemispheres, & divided into 4 lobes
2. transports info from CNA to the rest of the body
3. hollow fluid-filled cavities within brain that contain the choroid plexus which makes cerebrospinal fluid
5. processes the input stimuli & decides what should be done
6. the "fight or flight" division
7. collection of nerve cell body's located in the body (just not the brain or spinal cord)
9. chemicals released from neurons to cross synapses
12. spinal and cranial nerves (communication system between the CNA and the rest of the body) (abbreviate)
13. includes the medulla, oblongata, midbrain, and pons
14. the life support containing the nucleus & most organelles (such as tons of mitochondria)
16. excitable cells that respond to stimuli by conducting impulses to transmit signals
17. the "rest and digest" division
18. maintains posture and balance & under the cerebrum