The function of intimal longitudinal smooth muscles of the human coronary artery.
Bundles of smooth muscles in the intimal layer of the human coronary artery contracted in a longitudinal direction on the application of vasoactive substances. The data indicate that the human coronary artery contracts not only transversely but also longitudinally.
D000109:Acetylcholine / Q000494:pharmacology; D000368:Aged; D002110:Caffeine / Q000494:pharmacology; D003331:Coronary Vessels / Q000187:drug effects / Q000502:physiology* / Q000648:ultrastructure; D005260:Female; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D009119:Muscle Contraction / Q000187:drug effects*; D009131:Muscle, Smooth, Vascular / Q000187:drug effects / Q000502:physiology* / Q000648:ultrastructure; D011188:Potassium / Q000494:pharmacology
D002110:Caffeine; D000109:Acetylcholine; D011188:Potassium