Functional magnetic resonance imaging takes advantage of the fact that compared with less active neurons,more active neurons require greater amounts of
A)hydrogen.
B) oxygen.
C)gamma radiation.
D)magnetism.

Question

Functional magnetic resonance imaging takes advantage of the fact that compared with less active neurons,more active neurons require greater amounts of 
A)hydrogen. 
B) oxygen.​ 
C)gamma radiation. 
D)magnetism.

Quizplus · Accepted Answer

Functional magnetic resonance imaging (fMRI) detects changes in oxygen levels in the blood, specifically the level of oxygenated blood in active areas of the brain. When neurons become more active, they require more oxygen to produce energy, and fMRI measures the changes in blood flow that occur as a result.

Functional Magnetic Resonance Imaging Takes Advantage of the Fact That