Control of the heart rate

  • describe and explain how myogenic stimulation of the heart and transmission of a subsequent wave of electrical activity (to include the roles of the sinoatrial node (SAN), atrioventricular node (AVN) and Purkyne tissue in the bundle of His)
  • describe and explain the roles and locations of chemoreceptors and pressure receptors and the roles of the autonomic nervous system and effectors in controlling heart rate