PRESSURE RECEPTORS

• WHERE ARE PRESSURE RECEPTORS FOUND?

  within walls of carotid arteries and aorta
• WHAT DO PRESSURE RECEPTORS DO WHEN BLOOD PRESSURE INCREASES ABOVE NORMAL?

  pressure receptors transmit more nervous impulses to centre in medulla oblongata that decreases heart rate

  -> sends impulses via parasympathetic nervous system to SAN, decreasing heart rate
• WHAT DO PRESSURE RECEPTORS DO WHEN BLOOD PRESSURE FALLS LOWER THAN NORMAL?

  pressure receptors transmit more nervous impulses to centre in medulla oblongata that increases heart rate

  -> sends impulses via sympathetic nervous system to SAN, increasing heart rate