Circumventricular organs in the wall of the third ventricle lack a blood-brain barrier. This enables them to
A) facilitate the circulation of cerebrospinal fluid in the ventricles.
B) monitor the chemical composition of the blood.
C) secrete cerebrospinal fluid into the ventricles.
D) all of these choices.

Question

Quizplus · Accepted Answer

Circumventricular organs lack a blood-brain barrier, allowing them to detect changes in the blood's chemical composition and relay this information to the brain.

Circumventricular Organs in the Wall of the Third Ventricle Lack