What separates the blood from the CSF in the medulla?
A. a semipermeable membrane called the blood-brain barrier
B. a membrane that is permeable to H+ and bicarbonate ions
C. nothing-they are in direct contact
D. a thick gelatinous membrane that is impermeable to CO2 molecules
Answer: A
Health Professions
You might also like to view...
Which of the following ABG values would be consistent with ventilatory failure with hypoxemia in a patient with severe status asthmaticus?
1. Increased PaCO2 2. Decreased SaO2 3. Increased pH 4. Decreased pH a. 1, 2 b. 2, 3 c. 1, 2, 4 d. 1, 3, 4
Health Professions
The way individuals use the resources of the health care industry is called:
a. Health care coordination. b. Patient usage. c. Health care utilization. d. Improved activities.
Health Professions