12. The Central Nervous System

The two cerebral hemispheres are functionally different, even though anatomically they appear the same.

(a) True

(b) False

What kinds of problems are associated with the presence of lesions in the Wernicke's area and the Broca's area?

A patient has suffered a cerebral hemorrhage that has caused dysfunction of the precentral gyrus of his right cerebral cortex. As a result:

a. He cannot voluntarily move his left arm or leg.

b. He feels no sensation on the left side of his body.

c. He feels no sensation on his right side.

Clarence, an elderly man with a history of TIAs, complained to his daughter that he had a severe headache. Shortly thereafter, he lapsed into a coma. At the hospital, he was diagnosed as having a brain hemorrhage. Which part of the brain was damaged by the hemorrhage?

What effect does injury to the primary motor cortex have on peripheral muscles?

Fiber tracts that allow neurons within the same cerebral hemisphere to communicate are:

a. Association fibers

b. Commissures

c. Projection fibers

a. What is the function of the basal nuclei?

b. Which basal nuclei form the striatum?

c. Which arches over the diencephalon?