Cerebral blood flow

Definition

Cerebral blood flow (CBF) is the blood supply to the brain in a given period of time. It is crucial for delivering oxygen and nutrients to brain tissues and removing metabolic wastes.

5 Must Know Facts For Your Next Test

1. Normal CBF is approximately 50 milliliters per 100 grams of brain tissue per minute.
2. CBF can be affected by factors such as blood pressure, carbon dioxide levels, and intracranial pressure.
3. Poor nutrition can lead to compromised CBF, negatively impacting cognitive functions and neurological health.
4. Omega-3 fatty acids have been shown to support healthy CBF by reducing inflammation and improving vascular function.
5. Dehydration can reduce CBF, which may contribute to symptoms like dizziness, confusion, and impaired cognitive performance.

Review Questions

• What is the normal cerebral blood flow rate?
• How can poor nutrition impact cerebral blood flow?
• Why are omega-3 fatty acids important for maintaining healthy cerebral blood flow?

Related terms

Intracranial Pressure: The pressure inside the skull, which affects cerebral blood flow.

Cerebral Autoregulation: The brain's ability to maintain stable CBF despite changes in systemic blood pressure.

Neurovascular Coupling: The relationship between neuronal activity and subsequent changes in cerebral blood flow.