Coronary arteriolar vasoconstriction in myocardial ischaemia: reflexes, sympathetic nervous system, catecholamines.

@article{Longhurst1990CoronaryAV,
  title={Coronary arteriolar vasoconstriction in myocardial ischaemia: reflexes, sympathetic nervous system, catecholamines.},
  author={J C Longhurst},
  journal={European heart journal},
  year={1990},
  volume={11 Suppl B},
  pages={43-52}
}
The sympathetic nervous system exerts important control over the coronary circulation. Studies from our laboratory have demonstrated that reflex input from skeletal muscle during static contraction causes coronary vasoconstriction. Similarly, stimulation of abdominal visceral chemosensitive afferents can, on occasions, elicit coronary vasoconstriction or limit the extent of vasodilation so that the myocardium needs to extract additional oxygen from arterial blood. Recently, we have examined the… CONTINUE READING