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Cardiac muscles don't contract in unison, if you listen to your heart beat you should hear two distinctive thumps (1 for the atria, 1 for the ventricles). I believe the structure you're looking for is the Sinoatrial Node (SA node) which is a bundle of nerves in the upper part of the right atrium, also known as the 'pace maker'. The electrical impulse from the node triggers a sequence of electrical events (from the SA Node to the A(trio)V(entricular) node to the Purkinje fibers) which are the cause of the beating/contracting

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Q: What structure sets the pace for heart contraction?
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Related questions

What is pancemaker?

SA node '' sets the pace for the heart


Knot of modified myocardium that sets the pace of the heart?

The knot of modified myocardium that sets the pace of the heart is the sinoatrial (SA) node. The SA node is on the wall of the right atrium.


Small group of cardiac muscle cells that sets the pace for the heart?

the sinoatrial node; located in the right atrium.


What contraction rhymes with sets?

let's


One who sets the pace?

A pace-setter or pacemaker. Also known as a 'rabbit'.


What actors and actresses appeared in Betty Sets the Pace - 1920?

The cast of Betty Sets the Pace - 1920 includes: Muriel Ostriche as Betty


The S-A node which initiates each cardiac cycle and sets the pace for the heart rate is also known as?

isn't it just the sino-atrial node?


What is the oarsman who sets the pace called?

Stroke


What is the structure that sets the speed of the heart beat?

speed of heart beat is set by the flow of blood through your heart.if you walk its normal and when you ran its fast.


What does a ventricular pacemaker do to initiate a heartbeat?

The SA node (Sinoatrial node) sets the pace for the heart as a whole because no other region of the conduction system or the myocardium has a faster depolarization rate. For this reason, it is the heart's pacemaker.


What is a timing device that sets the pace for executing instructions?

The timing device used in microprocessors that sets the pace for executing instructions is called the clock. Often, it is a crystal oscillator.


How do I define my muscles?

Lighter weights, but more sets. Reps should be at a good pace.