Which of the following is true of CSF?
A) CSF is produced within the venous sinuses.
B) CSF flows from the lateral ventricles toward the fourth ventricle.
C) CSF is produced in the fourth ventricle and flows toward the fifth ventricle.
D) CSF is a by-product of nerve cell activity.
E) CSF production is sped up during a seizure.

Question

Quizplus · Accepted Answer

CSF flows from the lateral ventricles toward the fourth ventricle, where it is then distributed to the central canal of the spinal cord and the subarachnoid space surrounding the brain and spinal cord. The other options are false; CSF is not produced within the venous sinuses (A), nor is it produced in the fourth ventricle and flow toward a non-existent fifth ventricle (C). CSF is not a by-product of nerve cell activity (D); it is produced by specialized cells within the ventricles called choroid plexuses. There is no evidence to suggest that CSF production is sped up during a seizure (E).

Which of the Following Is True of CSF