Urinalysis and Body Fluids 6th Edition by Majorie DiLorenzo, Susan Strasinger

Exercise 6

The CSF flows through the:

A. Choroid plexus

B. Pia mater

C. Arachnoid space

D. Dura mater

Step 1 of 2

Cerebrospinal fluid (CSF):

It is a colorless, clear fluid present in spine, and brain produced from choroid plexuses, which is present in ventricles of brain.

• The spinal cord, and brain is lined with meninges

• Meninges have three layers, that are dura mater, arachnoid mater, and pia mater

• Nearly 20 mL (milliliter) cerebrospinal fluid is formed every hour

• The fluid flows between arachnoid and pia mater through subarachnoid space.

Therefore, CSF flows through “arachnoid space”. Hence, the correct answer is option.