Question

The amount of cerebrospinal fluid in an adult healthy human being is about.

• A. $200$ml
• B. $120$ml
• C. $60$ml
• D. $300$ml

Answer 1

The correct option is B $120$ml

Cerebrospinal fluid (CSF) is a clear, colourless body fluid found in the brain and spinal cord. Normal CSF production is 0.20-0.35 mL/min; most CSF is produced by the choroid plexus, which is located within the ventricular system, mainly the lateral and fourth ventricles. The capacity of the lateral and third ventricles in a healthy person is 20 mL. There is about 120 mL of CSF at any given time in the normal adult human body.

So, the correct option is B.