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What is the main pace maker of the heart?
The primary pacemaker of a normal healthy heart is the sinus node (or SA node). It is located in the right atria of the heart.
Why the sino atria node is regarded as a pacemaker in the heart?
The sinoatrial, or SA, node is known as the pacemaker of the heart. There are other potential pacemakers if the SA node fails, but it is the main pacemaker.
What is the main section of the heart that initiats the cardiac cycle also known as the pacemaker?
Sinoatrial node, or SA node.
What is the correct sequence of parts that function to carry cardiac impulses?
SA node, AV node, AV Bundle, Purkinje Fibers
Do neurotransmitters affect SA node?
SA node effects which neurotransmitter?
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.
Correct order of intrinsic cardiac conduction?
Its one of these, cant remember which one though: AV node, SA node AV bundle, Purkinje fibres. SA node, AV bundle, Purkinje fibres, AV node. SA node, AV node, AV bundle, Purkinje fibres. Purkinje fibres, SA node, AV node, AV bundle.
If the SA node fails to fire what takes over?
If the SA node fails to fire the atrioventricular node should take over.
What is the pacemaker SA node?
This is the self-depolarising set of myocardial (heart) cells that do not really have a contractile function but serve to trigger the coordinated electrical wave of depolarisation that causes the muscle to squeeze and pump blood.
Where in the heart would the SA node be found?
The anterior, upper part of the right atrium.The Sinoatrial Node or SA Node is located in the right Atrium of the Heart. The SA node is responsible of the normal sinus rhythm.
Is the peacemaker of the heart the atrioventricular node?
NO! it is the SA Node..
What node triggers the impulse in the heart?
SA node
