An increase in blood pressure is caused by al | vedclass

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Question

(C) The parasympathetic nervous system is responsible for lowering or maintaining blood pressure by slowing down the heart rate and promoting vasodila

Vedclass · Accepted Answer

Stimulation of parasympathetic nerves

Vedclass · Answer

(C) The parasympathetic nervous system is responsible for lowering or maintaining blood pressure by slowing down the heart rate and promoting vasodilation.Adrenaline increases heart rate and cardiac output,leading to an increase in blood pressure.Angiotensin $II$ is a potent vasoconstrictor that increases blood pressure.The vagus nerve is a major component of the parasympathetic nervous system; its stimulation decreases heart rate and blood pressure.Therefore,both stimulation of parasympathetic nerves and stimulation of the vagus nerve lead to a decrease in blood pressure,making them the correct exceptions.

An increase in blood pressure is caused by all the following except:

Similar Questions

What happens to the heart of a frog when the vagus nerve is stimulated?

Neural centre in the medulla oblongata can moderate the cardiac function through:

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

The pacemaker stimulates:

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.

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