Describe the various rapidly acting cardiac reflexes that influence cardiac function and the mechanisms by which they act.
Cardiac reflexes are fast-acting reflex loops between the heart and central nervous system that
contribute to regulation of cardiac function and maintenance of physiologic homeostasis. It was
expected candidates would include within their answer a mention of the stimulus and how it is sensed,
the reflex arc and the resultant effect. Thus candidates could have mentioned the Baroreceptor
Reflex/Carotid Sinus Reflex, Chemoreceptor, Bainbridge, Cushing, Oculocardiac and Bezold-Jarisch
(involves response to ventricular stimuli, sensed by receptors within the LV wall that trigger vagal
afferent type C fibers and the resultant triad of hypotension, bradycardia, and coronary artery