Contrast efferent and afferent tracing procedures.
What will be an ideal response?
In the efferent tracing procedure, a chemical is injected into a brain site, taken up by dendrites, and transported out to the axons. Immunocytochemistry is used to visualize the places that receive axons from the neurons of the injection site. In contrast, afferent tracing involves injecting a chemical, which is taken up by axon terminal buttons and transported backward to the cell bodies. This procedure thus identifies the neurons that innervate a specific brain region.
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A. minimal risk B. deception C. distortion D. plagiarism
Who is more apt to recover from brain damage?
a. a 47-year-old woman who had an aneurysm in her brainstem b. a 3-year-old child whose seizures were treated with a hemispherectomy c. a 75-year-old man who had a severe stroke resulting in Wernicke's aphasia d. a 15-year-old boy whose seizures were treated with a hemispherectomy
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a. sex preselection c. cloning b. genetic engineering d. sperm forecasting
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