Nervous System P1

2. The detection of stimuli through receptors.
5. Part of a neuron that includes cytoplasm and a nucleus, and from which nerve processes extend.
6. Nerve cell.
10. The process that conducts an impulse away from the neuron cell body. also called a nerve fiber.
12. The division of the PNS that division brings information into the central nervous system.
13. Motor pathways of the peripheral nervous system that lead to skeletal muscles.
15. The division of the PNS conducts impulses from the central nervous system to effectors.
16. Using stimuli to make a decision.
18. Motor portion of the peripheral nervous system that controls the viscera and operates without conscious effort.
19. The organ system that includes the brain, the spinal cord, nerves, and sense organs.

1. Parts of the nervous system outside the brain and spinal cord.
3. The brain and spinal cord.
4. Using stimuli to make a decision.
7. Chemical that an axon secretes at a synapse that stimulates or inhibits an effector (muscle or gland) or other neuron.
8. Process of a neuron that receives input from other neurons.
9. The many gaps in the myelin sheath along axons of myelinated neurons of the peripheral nervous system.
11. An action potential.
14. A muscle or gland, either of which can effect change in the body.
17. Specialized cells of the nervous system that, depending on the type of neuroglia, produce myelin, maintain the ionic environment, provide growth factors that support neurons, provide structural support, and play a role in cell-to-cell communication.