Instantaneous dimensional changes of the right atrium of the cat.
D000818:Animals; D016275:Atrial Function; D002415:Cats; D003326:Coronary Circulation; D004558:Electric Stimulation; D006339:Heart Rate; D010138:Pacemaker, Artificial; D011312:Pressure; D013233:Stellate Ganglion / Q000502:physiology; D014465:Ultrasonics; D014630:Vagus Nerve / Q000502:physiology