Histological changes in constricted arteries and arterioles.
D000818:Animals; D001158:Arteries / Q000033:anatomy & histology* / Q000187:drug effects*; D004431:Ear, External / Q000098:blood supply / Q000502:physiology; D004837:Epinephrine / Q000494:pharmacology; D009119:Muscle Contraction / Q000502:physiology*; D009130:Muscle, Smooth / Q000502:physiology*; D011817:Rabbits; D014666:Vasomotor System
D004837:Epinephrine