Apedia

OCR A Biology

Blood Pressure Impulses Medulla Heart Decreases Rate Sends

Baroreceptors in blood vessels detect blood pressure changes and signal the medulla oblongata to adjust heart rate and blood pressure back to normal.

Barorreceptores em vasos sanguíneos detectam mudanças na pressão arterial e sinalizam para a medula oblonga ajustar a frequência cardíaca e a pressão arterial para os níveis normais.

Front baroreceptors in blood vessels
Back
  • if blood pressure too high, impulses sent to medulla which decreases heart rate, medulla sends impulses along parasympathetic NS to SAN which decreases heart rate and returns blood pressure to normal
  • if blood pressure too low, impulses sent to medulla which increases heart rate, medulla sends impulses along sympathetic NS to SAN which increase heart rate and returns blood pressure to normal

Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.

Next card: Hormones heart rate role controlling influenced e.g adrenaline

Previous card: Chemoreceptors blood ph co2 detect increases heart rate

Up to card list: OCR A Biology