Coronary veins
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- updated 19 Oct 2022:
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The coronary veins return deoxygenated blood from the myocardium back to the right atrium. Most venous blood returns via the coronary sinus. Coronary venous anatomy is highly variable, but is generally comprised of three groups:
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cardiac veins which drain into the coronary sinus:
the anterior cardiac veins which drain directly into the right atrium
the venae cordis minimae (smallest cardiac veins a.k.a. Thebesian veins) drain directly into all four chambers but are most frequent in the right atrium.
-<p>The <strong>coronary veins</strong> return deoxygenated blood from the <a title="Myocardium" href="/articles/myocardium">myocardium</a> back to the <a href="/articles/right-atrium">right atrium</a>. Most venous blood returns via the <a href="/articles/coronary-sinus">coronary sinus</a>. Coronary venous anatomy is highly variable, but is generally comprised of three groups:</p><ul>-<li>cardiac veins which drain into the <a href="/articles/coronary-sinus">coronary sinus</a>:<ul>-<li><a href="/articles/great-cardiac-vein">great cardiac vein</a></li>-<li><a href="/articles/middle-cardiac-vein">middle cardiac vein</a></li>-<li><a href="/articles/small-cardiac-vein">small cardiac vein</a></li>-<li><a href="/articles/posterior-vein-of-the-left-ventricle">posterior vein of the left ventricle</a></li>- +<p>The <strong>coronary veins</strong> return deoxygenated blood from the <a href="/articles/myocardium" title="Myocardium">myocardium</a> back to the <a href="/articles/right-atrium">right atrium</a>. Most venous blood returns via the <a href="/articles/coronary-sinus">coronary sinus</a>. Coronary venous anatomy is highly variable, but is generally comprised of three groups:</p><ul>
-<a href="/articles/vein-of-marshall-1">vein of Marshall</a> (oblique vein of the <a href="/articles/left-atrium-1">left atrium</a>)</li>- +<p>cardiac veins which drain into the <a href="/articles/coronary-sinus">coronary sinus</a>:</p>
- +<ul>
- +<li><p><a href="/articles/great-cardiac-vein">great cardiac vein</a></p></li>
- +<li><p><a href="/articles/middle-cardiac-vein">middle cardiac vein</a></p></li>
- +<li><p><a href="/articles/small-cardiac-vein">small cardiac vein</a></p></li>
- +<li><p><a href="/articles/left-marginal-vein" title="Left marginal vein">left (obtuse) marginal vein</a></p></li>
- +<li><p><a href="/articles/posterior-vein-of-the-left-ventricle">posterior vein of the left ventricle</a></p></li>
- +<li><p><a href="/articles/vein-of-marshall-1">vein of Marshall</a> (oblique vein of the <a href="/articles/left-atrium-1">left atrium</a>)</p></li>
-<li>the <a href="/articles/anterior-cardiac-veins">anterior cardiac veins</a> which drain directly into the right atrium</li>-<li>the <a href="/articles/venae-cordis-minimae">venae cordis minimae</a> (smallest cardiac veins a.k.a. Thebesian veins) drain directly into all four chambers but are most frequent in the right atrium.</li>- +<li><p>the <a href="/articles/anterior-cardiac-veins">anterior cardiac veins</a> which drain directly into the right atrium</p></li>
- +<li><p>the <a href="/articles/venae-cordis-minimae">venae cordis minimae</a> (smallest cardiac veins a.k.a. Thebesian veins) drain directly into all four chambers but are most frequent in the right atrium.</p></li>
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