It would cause the heart to stop beating in a autorhythmic fashion.
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∙ 12y agoKnown as the "pacemaker of the heart," the sinoatrial node would most likely speed up if the body temperature were to rise.
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.
In a normally functioning heart, the SA (sinoatrial) node is the pacemaker of the heart, but if it is nonfunctional then the AV (atrioventricular) node would take over. If it isn't working either then the Bundle of His can trigger contractions, and if it isn't working the Perkinje fibers can trigger contractions. Each progressive one has a slower intrinsic heart rate.
Sinoatrial node
The sinoatrial node triggers an impulse
No, it is the SAN (sinoatrial node)
In a normally functioning heart, the SA (sinoatrial) node is the pacemaker of the heart, but if it is nonfunctional then the AV (atrioventricular) node would take over. If it isn't working either then the Bundle of His can trigger contractions, and if it isn't working the Perkinje fibers can trigger contractions. Each progressive one has a slower intrinsic heart rate.
... pacemaker.
sinoatrial node
yes
In the Sinoatrial Node
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.