During a spinal tap, cerebrospinal fluid is obtained from which of the following locations?

A) Dural sinus
B) Epidural space
C) Subarachnoid space
D) Subdural space
E) Sagittal sinus

Subarachnoid Space

The interval between the arachnoid membrane and the pia mater that is filled with cerebrospinal fluid, and surrounds the brain and spinal cord.

Cerebrospinal Fluid

A transparent, colorless fluid present within the brain and spinal cord that serves to protect the brain's cortex by cushioning it, offering essential mechanical and immunological defense within the skull.

Spinal Tap

A medical procedure where a needle is inserted into the lower back to collect cerebrospinal fluid for testing.