Which of the following is NOT a function of the cerebrospinal fluid?

Cerebrospinal fluid (CSF) plays several critical roles within the central nervous system. One of its primary functions is to provide nourishment to the brain and spinal cord, as it contains essential nutrients essential for cellular metabolism. Additionally, CSF helps in detoxifying the brain by removing waste products and potential toxins, thereby maintaining a stable environment for neural function.

It also serves as a protective cushion, buffering the brain and spinal cord from potential mechanical injuries by creating a stable water environment. However, regulating body temperature is not a direct function of cerebrospinal fluid. While the brain does require adequate temperature regulation, this is primarily managed by the circulatory system and does not rely on CSF. Therefore, the answer chosen is correct, as body temperature regulation falls outside the recognized roles of cerebrospinal fluid.