Final answer:
Blood flow in the brain is affected by changes in blood pressure, and the relationship between blood volume, blood pressure, and blood flow is pivotal in maintaining cerebral circulation.
Step-by-step explanation:
Blood flow in the brain does indeed change as blood pressure changes. The relationship between blood volume, blood pressure, and blood flow is closely linked. In the human body, and particularly in the brain, it is essential that blood flow remains consistent as the brain relies on a steady supply of oxygen and nutrients. The internal carotid arteries and the vertebral arteries are responsible for supplying blood to the brain, proving vital to prevent interruptions in blood flow.
Conditions like transient ischemic attacks (TIA) or strokes can occur when blood flow is compromised, even for a short period of time. Cerebral blood flow may also be affected by changes in cerebrospinal fluid (CSF) pressure, indicating that multiple factors influence the cerebral circulation. This illustrates that the statement 'Blood flow in the brain changes as blood pressure changes' is true.