True or false 56 false many biologists now believe

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True or False 56. False Many biologists now believe that neuropeptides are the most common neurotransmitters in the CNS. 57. True Cocaine produces a temporary feeling of well-being by blocking the uptake of dopamine. If you had difficulty with this section, review pages 396-403 Mechanisms of Disease Fill in the blanks 58. Multiple sclerosis is a disorder of the nervous system that involves the glia, rather than neurons. 59. Glioma is a common type of brain tumor that is usually benign but may still be life- threatening. 60. A highly malignant form of astrocytic tumor is known as glioblastoma multiforme . 61. Joseph Merrick, the so-called Elephant Man, suffered from multiple neurofibiromatosis 62. Most disorders of the nervous system cells involve glia rather than neurons. Page 404 Page 405 Page 408 Page 410 Page 399 P. 408 P. 410 P. 411 P. 411 P. 411 P. 412 P. 411
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Chapter 12 8 Applying What You Know 63. Jim is experiencing muscular weakness, loss of coordination, visual impairment, and speech disturbances. Which disease of the CNS could he be experiencing? Which nervous tissue cells are most likely involved? What specifically occurs to both the neurons and neuroglia of the CNS? What are the possible treatments and what are the theories as to the cause of this disease? This is possibly multiple sclerosis, which involves the CNS. The disease causes demyelination and myelin loss of the white matter. There are thoughts that this is caused by viral infections and/or autoimmune responses. There is no cure. 64. Lee Roy is a professional football player who, upon a sever compression blow to the head, lost the ability to move his lower body. He was rushed to the hospital where the doctors suspected crushing and bruising to the spinal cord.
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