Which of the following will occur as a result of increased action potential disc

Question

Which of the following will occur as a result of increased action potential discharge in aortic arch and carotid sinus baroreceptors? Decreased activity of sympathetic ganglion neurons control the heart. Decreased activity of parasympathetic fibers in the vagus nerve. Increase in heart rate. Increased force of contraction in cardiac muscle All of the above Which of the following is/are normal acute cardiovascular responses to exercise? Fall in venous return to the heart Marked increase in total peripheral resistance (TPR) Marked increase in mean arterial blood pressure Dilation of blood vessels to skin to maintain normal body temperature None of the above Which is the most important long term factor (weeks and months) that determines blood pressure? Number of heart beta-adrenoceptors Number of nerve fibers innervating the aortic and carotid arch high-pressure baroreceptors Blood volume Skeletal muscle activity and posture Pulmonary blood flow Which of the fol

Explanation / Answer

Hi,as per our regulations the first question is answered.

44. option A.decrease in sympathetic ganglion neuron.

The baroreceptors are pressure sensing cells in the blood vessels. Aortic baroreceptor senses the blood pressue in almost all systemic vessels, whereas the carotid baroreceptors sense the blood pressure on vessels of brain. The rise in action potential in these receptors, increases the parasympathetic activity and decreases the sympathetic activity. As a reflex the cardiac output decreases , vessels dilate and cardiac contraction decreases..

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.