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4. provide structural and nutritional needs to support neuron, and also help them communicate with nervous system
5. two lobes on the top of the brain where body sensations are received and interpreted
9. Nervous System in which the subdivision of the autonomic nervous system that calms the body and conserves energy
11. part of limbic system that controls emotions and formate emotional memory
13. brain's ability to organize and change structures and functions throughout lifespan
15. a formula providing a percentage of variation in population attributed to genetic factors
18. involved in auditory learning, language comprehension, memory, and some emotional control
19. Nervous System that connects the central nervous system to sensory receptors and controls skeletal muscles
20. involved on forming and retrieveing memories

1. Formation diffuse set of neurons that help screen incoming information and control arouse
2. layer of fatty insulation around axon of some neurons that increases the rate which neural impulses travel along axon
3. innate, automatic res[onse to stimulus
6. the process by which neurons are generated
7. study of relative effects of heredity and enviorment on the behavior and mental processes
8. inbetween axon tip of sending neuron and cell body of the releasing neuron; during action potential, neurotransmitters are released and flow across this
10. lower hind region of the brain that is a collection of the structures medulla, pons, and cerebellum
12. a bundle of nueral fibers that connect the brain's two hemispheres
14. serves as the brain switchboard by relaying messages to cerebral cortex
16. chemical substance in nervous system involved in pain control, pleasure, and memory
17. Selection process by which heritable traits with higher changes of survival are favored