Sinoatrial nodal artery
Updates to Article Attributes
Title
was changed:
Status
changed from pending review to published (public).
Published At
was set to
.
Body
was changed:
The SAsinoatrial (SA) nodal artery arises from is the right coronarysmall artery to supply that supplies the SAsinoatrial (SA) node (pacemaker of the heart (the pacemaker).
Origin
Right coronary artery in 60% of cases and the left coronary artery in 40% of cases.
Course
The SA nodeartery turns posteriorly below the superior vena caval opening.
Variant Anatomy
The SA node can arise from it's own opening in the anterior aortic sinus.
A study of 516 SA nodal arteries using MDCT found 96.4% of arteries were single whilst 3.6% were double. In this study only 53.4% of SA nodal arteries originated from the right coronary artery with 43% originating from the left circumflex artery.
-<p>The <strong>SA nodal artery</strong> arises from the <a title="right coronary artery" href="/articles/right-coronary-artery">right coronary artery</a> to supply the SA node (pacemaker). </p><h6>Origin</h6><p>Right coronary artery</p><h6>Course</h6><p>The SA node turns posteriorly below the <a title="Superior vena cava" href="/articles/superior-vena-cava">superior vena caval</a> opening.</p><h6>Variant Anatomy</h6><p>The SA node can arise from it's own opening in the anterior aortic sinus. </p><p>A study of 516 SA nodal arteries using <a title="MDCT" href="/articles/mdct">MDCT</a> found 96.4% of arteries were single whilst 3.6% were double. In this study only 53.4% of SA nodal arteries originated from the right coronary artery with 43% originating from the <a title="Left circumflex artery" href="/articles/circumflex-artery">left circumflex artery</a>. </p>- +<p>The <strong>sinoatrial (SA) nodal artery</strong> is the small artery that supplies the <a href="/articles/sinoatrial-node">sinoatrial (SA) node</a> of the <a href="/articles/heart">heart</a> (the pacemaker). </p><h6>Origin</h6><p><a href="/articles/right-coronary-artery">Right coronary artery</a> in 60% of cases and the <a href="/articles/left-main-coronary-artery-1">left coronary artery</a> in 40% of cases.</p><h6>Course</h6><p>The artery turns posteriorly below the <a href="/articles/superior-vena-cava">superior vena caval</a> opening.</p><h6>Variant Anatomy</h6><p>The SA node can arise from it's own opening in the anterior aortic sinus. </p><p>A study of 516 SA nodal arteries using <a href="/articles/mdct">MDCT</a> found 96.4% of arteries were single whilst 3.6% were double. In this study only 53.4% of SA nodal arteries originated from the right coronary artery with 43% originating from the <a href="/articles/circumflex-artery">left circumflex artery</a>. </p>
Unable to process the form. Check for errors and try again.