Select the correct option regarding the regul | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Cardiac activity is regulated by both neural and hormonal mechanisms.$1$. Intrinsic regulation: The human heart is myogenic,meaning it is auto-reg

Vedclass · Accepted Answer

All of the above.

Vedclass · Answer

(D) Cardiac activity is regulated by both neural and hormonal mechanisms.$1$. Intrinsic regulation: The human heart is myogenic,meaning it is auto-regulated by specialized nodal tissues ($SA$ node and $AV$ node).$2$. Neural regulation: $A$ special neural center in the medulla oblongata can moderate cardiac functions through the autonomic nervous system $(ANS)$. Sympathetic nerves increase the rate of heartbeat,while parasympathetic nerves decrease it.$3$. Hormonal regulation: Hormones secreted by the adrenal medulla,such as adrenaline and noradrenaline,increase cardiac output and heart rate.Therefore,all the given statements are correct.

Select the correct option regarding the regulation of cardiac activity.

Similar Questions

Assertion $(A) :-$ Parasympathetic neural signals decrease the cardiac output.
Reason $(R) :-$ Parasympathetic neural signals decrease the rate of heartbeat and the speed of conduction of action potentials.

Which of the following factors increase the heart rate?
$(A)$ Sympathetic nerve signals
$(B)$ Parasympathetic nerve signals
$(C)$ Adrenal medullary hormones
$(D)$ Vagus nerve
$(E)$ Thyroxine hormone
$(F)$ Acetylcholine

What is the effect of the parasympathetic nervous system on the heart rate?

What is the effect on the heart rate if the parasympathetic nerve is cut in a rabbit?

During high blood pressure,the regulation of circulation and heart rate is controlled by which of the following centers?

Vedclass Test Series

Exam Paper Generator

Online Exam Module