What sequence causes autonomic hyperreflexia-induced bradycardia?
A)Stimulation of the sympathetic nervous system to ß-adrenergic receptors to the sinoatrial node
B)Stimulation of the carotid sinus to the vagus nerve to the sinoatrial node
C)Stimulation of the parasympathetic nervous system to the glossopharyngeal nerve to the atrioventricular node
D)Stimulation of the bundle branches to the a-adrenergic receptors to the sinoatrial node

Question

Quizplus · Accepted Answer

The intact autonomic nervous system reflexively responds with an arteriolar spasm that increases blood pressure. Baroreceptors in the cerebral vessels, the carotid sinus, and the aorta sense the hypertension and stimulate the parasympathetic system. The heart rate decreases, but the visceral and peripheral vessels do not dilate because efferent impulses cannot pass through the cord. Refer to Figure 17-13.

What Sequence Causes Autonomic Hyperreflexia-Induced Bradycardia