Cerebrospinal fluid…
A. Is an ultrafiltrate of plasma.
B. Is the main source of the brain’s nutrition.
C. Has the same pH as arterial blood.
D. Has a higher glucose concentration than has plasma.
E. Has a higher calcium concentration than has plasma.
The correct statements about cerebrospinal fluid (CSF) are:
A. Is an ultrafiltrate of plasma.
B. Is the main source of the brain’s nutrition.
Cerebrospinal fluid is derived from plasma by ultrafiltration and provides essential nutrients to the brain. It has a slightly different pH than arterial blood, typically a bit lower, and has lower glucose and calcium concentrations compared to plasma.