Biology / Unit 13 Bio 3215 short lesson, about 20 seconds
Baroreceptor Reflex and Blood Pressure Regulation
Captions available
The idea
Baroreceptors in major vessels detect blood pressure changes and signal the brainstem to adjust heart rate and vessel diameter, working alongside the hormonal pathway, per Bio 2937.
In practice
A sudden pressure drop triggers baroreceptor signaling that raises heart rate within seconds.
Where people slip
The baroreceptor reflex acts on a seconds-to-minutes scale, while the hormonal pathway, per Bio 2937, sustains pressure longer.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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