Ch. 12 The Central Nervous System
Chapter 11, Problem 28
a. Define cerebrovascular accident or CVA. b. Describe its possible causes and consequences.
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Related Practice
Textbook Question
a. What does lateralization of cortical functioning mean?
b. Why is the term cerebral dominance a misnomer?
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Textbook Question
Describe the spinal cord, depicting its extent, its composition of gray and white matter, and its spinal roots.
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Textbook Question
Central pattern generators (CPGs) are found at the segmental level of motor control.
a. What is the job of the CPGs?
b. What controls them, and where is this control localized?
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Textbook Question
A 10-month-old infant has an enlarging head circumference and delayed overall development. Her CSF pressure is elevated, and she has a bulging anterior fontanelle (fontanelles are the as yet unossified fibrous membranes connecting skull bones in infants). Based on these findings, answer the following questions:
a. What are the possible cause(s) of an enlarged head?
b. Which tests might be helpful in obtaining information about this infant's problem?
c. Assuming the tests conducted showed the cerebral aqueduct to be constricted, which ventricles or CSF-containing areas would you expect to be enlarged? Which would likely not be visible? Respond to the same questions based on a finding of obstructed arachnoid granulations.
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