In magnetic resonance imaging technologies, we use the term voxel ...

[K@]

In magnetic resonance imaging technologies, we use the term voxel to refer to
 
  a. the rate at which atoms spin.
 b. the strength of the magnets being used.
 c. a small area of tissue to be assigned a pixel of appropriate color or darkness.
 d. a gamma ray released during the breakdown of a radioactive tracer.

Question 2

Functional magnetic resonance imaging (fMRI) requires
 
  a. stronger magnets than those used in MRI.
 b. the injection of radioactive substances into the participant.
  c. larger numbers of gamma cameras than in MRI.
 d. multiple images taken in a short period of time.

[Leostella20]

Answer to Question 1

c

Answer to Question 2

d

[K@]

Excellent

[daiying98]

Thanks for the timely response, appreciate it