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Function of the sinoatrial node

Anonymous

∙ 14y ago

Updated: 11/17/2022

To originate muscle contractions and regulate the rhythm of the heart.

Dictates the heart rate at 70 - 80 beats per minute when the body is at rest. It originates the electrical impulse for the entire conduction system of the heart.

Wiki User

∙ 14y ago

What else can I help you with?

What first causes the sinoatrial node to begin in a fetus' heart?

The sinoatrial node is a part of the electrical system of the heart. The development of the sinoatrial node is from the sinus horn myocardium in fetal development.

The node that directly controls contraction of the atria is?

Sinoatrial node

What node triggers and impulse?

The sinoatrial node triggers an impulse

Is AV NODE known as pacemaker?

No, it is the SAN (sinoatrial node)

The sinoatrial node is the heart's?

... pacemaker.

What is the peacemaker of the myocardium?

sinoatrial node

A heartbeat begins with an impulse from the?

In the Sinoatrial Node

Is sinoatrial node called a pacemaker?

yes

What pacemaker of the heart initiates depolarization under normal conditions?

The primary pacemaker of the mammalian heart is the sino-atrial node. If the SA node fails, the atrioventricular node (AV node) takes over pacemaking.

What conducting cells set heart rate?

Sinoatrial Node (SA node)

What does the sinoatrial node do when body temperature is increased?

Known as the "pacemaker of the heart," the sinoatrial node would most likely speed up if the body temperature were to rise.

Is the pacemaker of the heart under normal circumstances is called the sinoatrial SA node?

Yes the sinoatrial node is also called the pacemaker under all circumstances

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