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What controls the pulse rate?

Answer 1

Pulse rate is the count of the beats of the heart, typically in beats per minute.

The number of heartbeats is known as the pulse rate.

Many factors can impact pulse rate.

The atrioventricular node (AVN), which receives an electrical signal from the sino-atrial node (SAN), which starts the cardiac cycle, controls the pulse. After a brief pause, the signal travels through the septum, upward and outward around the ventricles, causing the contractions and relaxations of the atria and ventricles that are known as the cardiac cycle or pulse.

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Answer 2

Kai Adams

The sympathetic and parasympathetic branches of the autonomic nervous system regulate the heart rate; the former speeds up during stressful or exhilarating events, while the latter slows it down during rest and relaxation. Hormones such as adrenaline can also momentarily raise the heart rate.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.