12. The Central Nervous System

a. Make a rough drawing of the lateral aspect of the left cerebral hemisphere.

b. You may be thinking, 'But I just can't draw!' So, name the hemisphere involved with most people's ability to draw.

c. On your drawing, locate the following areas and provide the major function of each: primary motor cortex, premotor cortex, somatosensory association cortex, primary somatosensory cortex, visual and auditory areas, prefrontal cortex, Wernicke's and Broca's areas.

The only cranial nerves that are attached to the cerebrum are the____ nerves.

(a) optic

(b) oculomotor

(c) trochlear

(d) olfactory

(e) abducens

Mark the following statements about the brain as true or false. If a statement is false, correct it to make a true statement.

The cerebrum is responsible for our basic, involuntary functions and reflexes.

Which statement about cerebral white matter is false?

a. Commissural fibers connect the right and left cerebral hemispheres.

b. Projection fibers connect the cerebral cortex of one hemisphere with structures in the other hemisphere.

c. The corpus callosum is the largest bundle of white matter in the brain.

d. Association fibers connect the gyri of the cerebral cortex with one another.

Mark the following statements about the cerebral cortex as true or false. If a statement is false, correct it to make a true statement.

The neocortex is the 'newest' component of the cerebral cortex from an evolutionary perspective.

Mark the following statements about the cerebral cortex as true or false. If a statement is false, correct it to make a true statement.

The cerebral cortex is composed of white matter.

Mark the following statements about the cerebral cortex as true or false. If a statement is false, correct it to make a true statement.

The primary visual cortex is located in the occipital lobe.

Mark the following statements about the cerebral cortex as true or false. If a statement is false, correct it to make a true statement.

The prefrontal cortex is located in the frontal lobe and is concerned with movement.

The central sulcus separates the:

a. Parietal and temporal lobes

b. Parietal and occipital lobes

c. Frontal and temporal lobes

d. Frontal and parietal lobes

Huntington's disease is characterized by a loss of normal inhibition mediated by the basal nuclei. Predict the symptoms you are likely to see with this disease.

How could you tell the difference between an injury that damaged the cerebellum and one that damaged the basal nuclei?