Heart Regulation

• What does the myogenic nature of cardiac muscle refer to?

  This refers to the heart tissues autonomic ability to contract and relax without initiation from external stimuli.
• What is heart rate?

  The number of times the heart beats in a minute.
• What section of the brain regulates heartrate?

  The medulla, located above the spinal cord.
• What does the medulla consist of?

  Cardio regulatory centre.
• What does the cardio regulatory centre consist of?

  The acceleratory centre and inhibitory centre.
• How do these two centres connect to the sino atrial node?

  Nerves of the autonomic nervous system that are responsible for involuntary activity.