1
	2
3																												4
																										5
												6							7
				8
																9
																							10
									11
																					12
							13
													14												15
																															16
17
					18
																																	19
			20											21
															22
23																												24
																								25

Across 3. The brain and spinal cord. 6. Chemicals that axons secret on effectors or other neurons 8. the functional connection between the axon of a neuron and the dendrite or cell body of another neuron or the membrane of another cell type 11. A type of neuroglial cell that forms myclin 13. a nerve that consists of motor neuron axons 18. muscles or glands that effect changes in the body 21. a type of neuroglial cell that surronds an axon of a peripheral neuron forming the neurilemmal sheath and myelin 22. specialiged structures associated with the peripheral ends of senory neurons specific to detecting 23. Part of nervous system that controls the viscira 25. a type of neuroglial all that connects neurons to blood vessels

Down 1. Part of the nervous system outside the central nervous system. 2. Specialized cells of the nervous system that produe mylin, communicte between cells maintain and nurture the defferention of neurons 4. a nerve composed of sensory nerve fibers 5. Portion of nerve cell that includes a cytophasmic mass and a nucleus and from which nerve fibers extended 7. the sequence of electrical changes that occurs in a portion of a nerve cell membrain that is exposed to a stimulus that exceeds the membranes threshold 9. Masses of neuron cell bodies ussaly outside the central nervous system 10. the difference in electrical charge between the inside and the outside of an undisturbed nerve cell membrane 12. Motor pathways of the peripheral nervous system that bad to the skin and skeletal muscles. 14. A bundle of axons in the peripheral nervous system 15. Neuroglial cell that line the ventricles of the brain 16. fatty material that forms a sheathlike covering around some axons 17. A neuroglial cell that supports neurons and phagorytrizes 19. process of a neuron that receives input from other neurons 20. Nerve cells 24. a nerve fiber