chapter 3 summary

chapter 3 summary - April 1 2008 Summary of Chapter 3...

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April 1, 2008 Summary of Chapter 3 Structure of the Nervous System There are basic terms used to describe the nervous system. Anterior is toward the head, posterior is toward the tail, lateral is toward the side, medial is toward the middle, dorsal is toward the back, and ventral is toward the front of surface of the body. In the special case of the nervous system, rostral means toward the beak (or nose) and caudal means toward the tail. Ipsilateral means same side, and contralateral means other side. A cross section (or in the case of the brain, a frontal section) slices the nervous system at right angles to the neuraxis. A horizontal section slices the brain parallel to the ground. A sagittal section slices it perpendicular to the ground and parallel to the neuraxis. There are two types of nervous systems discussed in this chapter. The central nervous system (CNS), which is composed of the brain and spinal cord, , and the peripheral nervous system (PNS) which is composed of the cranial nerves, spinal nerves,
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chapter 3 summary - April 1 2008 Summary of Chapter 3...

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