The blood is injected with a special dye that stains the areas where it passes through. Where in the brain and spinal cord would you expect to see the stain?
A)The brain and spinal cord would be stained.
B)Any space occupied by the CSF would be stained.
C)The space outside of the dura mater (between dura mater and bone)would be stained.
D)No stain would be found inside the cranium or vertebral column.

Question

Quizplus · Accepted Answer

The CSF fills the subarachnoid space surrounding the brain and spinal cord. Therefore, if the blood injected with dye enters the CSF, we would expect to see the stain in the spaces occupied by the CSF.

The Blood Is Injected with a Special Dye That Stains