ch14 - Chapter 14 THE BRAIN AND CRANIAL NERVES Chapter...

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Chapter 14 THE BRAIN AND CRANIAL NERVES Chapter Synopsis This chapter considers the principal anatomical and functional features of the brain, cranial meninges, and blood supply and the formation and circulation of cerebrospinal fluid (CSF). Also discussed are the electroencephalogram (EEG), hemispheric lateralization, the locations and functions of the cranial nerves, developmental anatomy of the nervous system, and the effects of aging on the nervous system. The disorders and of the nervous system that are covered include cerebrovascular accident (CVA), transient ischemic attack (TIA), Alzheimer’s disease (AD), brain tumors, and attention deficit hyperactivity disorder (ADHD). Clinical applications covered include breaching the blood-brain barrier, hydrocephalus, injury of the medulla, brain injuries, dental anesthesia, subdural hemorrhage, ataxia, damage to basal ganglia, and aphasia. There is also a glossary of medical terminology related to the central nervous system. Chapter Outline and Objectives INTRODUCTION 1. Give an overview of the capacity of the brain as it determines the activities of one’s life. OVERVIEW OF BRAIN ORGANIZATION AND BLOOD SUPPLY Major Parts of the Brain 2. Introduce the principle parts of the brain in terms of their relative
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positions and connections. Blood Flow and the Blood-Brain Barrier 3. Describe the blood supply to the brain and the concept of the blood- brain barrier and the effect of their compromise. 4. Discuss how the blood-brain barrier can be breached. Protective Coverings of the Brain 5. Identify the three layers of the meninges and their extensions that surround the brain and spinal cord.
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