The vestibular system contributes to maintaining adequate brain perfusion during postural changes. Which term describes this function?

The vestibular system contributes to maintaining adequate brain perfusion during postural changes. Which term describes this function?

• A. Blood pressure control
• B. Eye movement coordination
• C. Auditory filtering
• D. Olfactory regulation

Answer: (A)

Autonomic adjustments to preserve cerebral blood flow during posture changes are driven by the vestibular system. The term that describes this function is blood pressure control. When you shift posture, the vestibular input signals the brainstem to adjust sympathetic outflow and vascular tone, helping to keep mean arterial pressure stable so the brain remains well perfused. This is different from eye movement coordination, which is about stabilizing vision through the vestibulo-ocular reflex; auditory filtering, which relates to the ear's processing of sound; and olfactory regulation, which involves smell.

Autonomic adjustments to preserve cerebral blood flow during posture changes are driven by the vestibular system. The term that describes this function is blood pressure control. When you shift posture, the vestibular input signals the brainstem to adjust sympathetic outflow and vascular tone, helping to keep mean arterial pressure stable so the brain remains well perfused.

This is different from eye movement coordination, which is about stabilizing vision through the vestibulo-ocular reflex; auditory filtering, which relates to the ear's processing of sound; and olfactory regulation, which involves smell.