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										26								27
							28
	29
30																							31							32
												33														34
										35															36
																			37		38
			39
															40				41
			42
			43			44																											45
								46					47								48				49
															50
		51													52
																												53
																									54
						55

Across 2. nerve that is motor to external and internal oblique and transverse abdominis 8. cytoplasm surrounding the nucleus 10. area of the SC dominated by cell bodies of neurons 11. chemicals that move from one neuron to another across a cleft 13. slender strand of fibrous tissue, extends from conus medullaris 14. also known as association neuron 16. filum terminale and long anterior and posterior roots, looks like horses tail 17. about 0.2 to 0.5 msec 19. ligaments that prevent lateral movement of the SC 21. nerve that is sensory to skin over posterior ear and neck 25. internal passageway of spinal cord 27. nerve that is sensory to skin of neck and scalp 30. organelles needed to move chromosomes during mitosis 33. outermost meninge 36. bundles of neurofilaments 38. the fastest reflexes have this many synapses 39. neuroglia can act as these structures because they eat dead or broken cell parts 41. plasma membrane of the axon 43. nerve that is motor to the gracilis, and the adductors 46. space found between the dura mater and walls of the vertebral column 49. support cells of the NS 50. extensive network of neurons and nerves in the walls of the digestive tract 51. neuron with one dendrite and one axon 52. space that separates dura mater and arachnoid mater 53. nerve that controls diaphragm 54. neuron communicates with another neuron 55. mitochondria make energy in the form of this

Down 1. learned reflex 2. nerve that is motor to the gluteus maximus 3. inferior to lumbosacral region, tapered and conical 4. area of the SC contains large number of axons 5. nerve that is sensory to skin over anterior neck 6. nerve that is sensory from the medial surface of the hand 7. nerve that is sensory to skin over anterior, medial thigh and part of genitalia 9. contain cell bodies of sensory neuron 12. areas of perikaryon that contain RER and ribosomes 15. middle mening 18. terminal branches end of the axons 20. the space between 2 neurons 22. ligaments that support the SC at the filum terminal 23. roots that contain motor neurons 24. side branches of axons 26. more complex, learned reflex 28. neuron with 2 or more dendrites and one axon 29. nerve that controls flexor muscles of the forearm 31. carries motor commands from CNS to the muscles and glands 32. part of the PNS that brings sensory information to the CNS 34. specific bilateral region of the skin surface monitored by a single pair of SN 35. the parasympathetic and sympathetic NS are parts of this NS 37. innermost meninge 40. a posterior root may be divided into 8-12 of these 42. roots that contain sensory neurons 44. neuron with a continuous with dendrite and axon, with cel body off to the side 45. neuron with many dendrites and no visible axons 47. nerve that controls extensor muscles of the arm and forearm 48. nerve that is divided into the tibial and common fibular nerve 49. basic functional unit of the NS