Alpha-adrenergic receptors and coronary blood vessels.
D000818:Animals; D003331:Coronary Vessels / Q000502:physiology*; D008954:Models, Biological; D005082:Physical Exertion; D011942:Receptors, Adrenergic, alpha / Q000502:physiology*; D014661:Vasoconstriction; D014664:Vasodilation
D011942:Receptors, Adrenergic, alpha