Cerebrospinal fluid (CSF)

Definition

Cerebrospinal fluid (CSF) is a clear, colorless body fluid found within the brain and spinal cord. It acts as a cushion, providing mechanical and immunological protection to the central nervous system.

5 Must Know Facts For Your Next Test

1. CSF is produced in the choroid plexus of the ventricles in the brain.
2. It circulates through the ventricles, central canal of the spinal cord, and subarachnoid space before being absorbed into the bloodstream.
3. CSF maintains homeostasis by regulating intracranial pressure and removing waste products from the brain.
4. An imbalance in CSF production or absorption can lead to conditions such as hydrocephalus.
5. CSF analysis can be used diagnostically to detect infections, bleeding, or other neurological conditions.

Review Questions

• Where is cerebrospinal fluid produced?
• What are two primary functions of cerebrospinal fluid?
• How does an imbalance in CSF affect the body?

Related terms

Central Nervous System (CNS): Comprises the brain and spinal cord, responsible for processing sensory information and controlling bodily functions.

Hydrocephalus: A condition characterized by an excess accumulation of cerebrospinal fluid within the brain's ventricles.

Subarachnoid Space: The space between the arachnoid mater and pia mater where cerebrospinal fluid circulates around the brain and spinal cord.