Question

The brain has a ________ (high or low?) demand for oxygen, and receives about ________% of the total blood volume in circulation.

A. high; 35

B. low; 35

C. low; 15

D. high; 15

E. high; 50

Answer 1

The brain has a high demand for oxygen and receives about 15% of the total blood volume, ensuring it gets sufficient oxygen and nutrients for proper function.

Step-by-step explanation:

The brain has a high demand for oxygen, as it is one of the most metabolically active organs in the body. Despite only accounting for approximately 2% of an individual's total body weight, the brain receives about 15% of the total blood volume in circulation. This substantial blood supply ensures that the brain receives the oxygen and nutrients it needs to function properly. The correct answer to the question is therefore D. high; 15.