In this chapter you will learn
 

• The major structures of the nervous system and some of their functions
• How the nervous system develops and how it changes with experience
• Strategies for repairing damaged brains and spinal cords, and the obstacles

Chapter 3 covers the major structures of the nervous system from both a structural and functional standpoint. First, the central nervous system is discussed. The forebrain is described, including the two hemispheres, the four lobes, the diencephalon (thalamus and hypothalamus), and other structures such as the ventricles. The midbrain, hindbrain, and spinal cord are then dealt with. The importance of the meninges’ and blood-brain barrier’s protective function is emphasized, since the brain does not recover easily from disease or injury. The second section of the chapter explains the role of the peripheral nervous system, and particularly the autonomic nervous system. The third and final section of Chapter 3 is concerned with development and change within the nervous system. The primary stages of development are discussed, including how experience modifies the nervous system. Finally, discussion centers on damage and recovery within the central nervous system. The various limitations on recovery are mentioned, along with the possibilities for CNS repair. An application discussing new research on repairing the brain through computer chips applies the concepts in the chapter to a real world use.