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Notes
      3. Old stuff
          3.2. Old physio stuff (around 2005)
              3.2.3. Physiology
                  3.2.3.2. Cardiovascular
                      3.2.3.2.4. Regulatory mechanisms
 3.2.3.2.4.1. Regulation of heart rate 
 1. ANS innervation of the heart
 2. Reflexes on HR

Regulation of heart rate

Increased by

  • Decreased stimulation of baroreceptors
  • Epinephrine
  • Increased stimulation of atrial stretch receptors (Bainbridge reflex)
  • Inspiration
  • Lung inflation
  • Pain
  • Stimulation of sympathetic nervous system
  • Thyroid hormone
  • Fever

Decreased by

  • Increased stimulation of baroreceptors
  • Norepinephrine
  • Decreased stimulation of atrial stretch receptors (Bainbridge reflex)
  • Expiration
  • Stimulation of pain fibre in trigeminal nerve
  • Raised ICP
  • Stimulation of peripheral chemoreceptors

 

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