Pathophysiology Chapter 17 - Alterations in Cognitive Systems, Cerebral Hemodynamics, and Motor Function

Pathophysiology Chapter 17 - Alterations in Cognitive Systems, Cerebral Hemodynamics,

and Motor Function




1. Cognitive operations cannot occur without the effective functioning of what part of the

brain?

a. Pons

b. Medulla oblongata

c. Reticular activating system

d. Cingulate gyrus

2. Which intracerebral disease process is capable of producing diffuse dysfunction?

a. Closed-head trauma with bleeding

b. Subdural pus collections

c. Neoplasm

d. Embolic infarct

3. What is the most common infratentorial brain disease process that results in the direct

destruction of the reticulating activation system (RAS)?

a. Cerebrovascular disease

b. Demyelinating disease

c. Neoplasms

d. Abscesses

4. What stimulus causes posthyperventilation apnea (PHVA)?

a. Changes in PaO2 levels

b. Changes in PaCO2 levels

c. Damage to the forebrain