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Q: What Node that triggers an impulse that causes both atria?
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The SA node triggers an impulse that causes both atria to do what?

SA node sends an impulse for the atria to contract. AV node is then activated which contracts the ventricles.


What node triggers an im pulse that causes both atria to?

the atriventriculart node causes both atria to contract


What node triggers and impulse?

The sinoatrial node triggers an impulse


What node triggers the impulse in the heart?

SA node


Where does the atria located?

The Heart's own pace makerThe heart beats regularly because it has it's own pacemaker. The pacemaker is a small region of muscle called the sinoatrial, or SA, node. It is in the upper back wall of the right atrium. The node triggers an impulse that causes both atrium to contract. Very quickly, the impulse reaches the atrioventricular, or AV, node at the bottom of the right atrium. Immediately, the atrioventricular node triggers an impulse that causes both ventricles to contract.


Atrioventricular node at the bottom of the?

The heart beats regularly because it has it's own pacemaker. The pacemaker is a small region of muscle called the sinoatrial, or SA, node. It is in the upper back wall of the right atrium. The node triggers an impulse that causes both atrium to contract. Very quickly, the impulse reaches the atrioventricular, or AV, node at the bottom of the right atrium. Immediately, the atrioventricular node triggers an impulse that causes both ventricles to contract.


What structure conducts the contraction impulse from the atria to the ventricles?

the purkinje fibers um no!!! wrong answer!!


An electrical signal causes the atria to?

contract and push blood into the ventricles of the heart. This electrical activity originates from the sinoatrial node and travels through the atrioventricular node, stimulating the atrial muscles to contract in a coordinated manner. This process ensures efficient blood flow through the heart.


What is the importance of delay in the action potential in the AV node?

At the AV node, the impulse is delayed for about 0.1s, allowing the atria to respond and complete their contraction before the ventricles contract.


When an electrical impulse reaches the AV node it is slowed for a brief period of time so that?

blood can pass from the atria to the ventricles.


Does the AV node initiates the contraction of the atria?

No, the sinoatrial (SA) node initiates contraction of the atria, which subsequently causes stimulation of the AV node, which then initiates contraction of the ventricles via the Purkinje fibers.


At what structure in the transmission sequence is the impulse temporarily delayed and why?

The impulse is temporarily delayed at the atrioventricular (AV) node. This delay allows the atria to contract and complete the filling of the ventricles before the impulse is transmitted to them. The delay also ensures proper coordination of the heart's contractions, promoting efficient blood flow.