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Veins of the Heart

𝐒𝐮𝐛𝐬𝐜𝐫𝐢𝐛𝐞 𝗙𝐨𝐫 𝗠𝐨𝐫𝐞 𝗜𝐧𝐟𝐨𝐫𝐦𝐚𝐭𝐢𝐨𝐧 𝐨𝐧 𝗛𝐞𝐚𝐥𝐭𝐡 👩‍⚕‍ 𝐚𝐧𝐝 𝗠𝐞𝐝𝐢𝐜𝐢𝐧𝐞💉🩺💊 📌𝗜𝗻𝘀𝘁𝗮𝗴𝗿𝗮𝗺 :   / clinical.learning   Veins of the Heart --------------------------------- The veins of the heart are responsible for draining deoxygenated blood from the myocardium 💉🫀 and returning it primarily into the right atrium 💙, playing a vital role in cardiac circulation and venous return 🌊. The main venous drainage is through the coronary sinus 🌙, a wide venous channel located in the posterior part of the coronary sulcus, which opens directly into the right atrium. The coronary sinus receives blood from five major tributaries: the great cardiac vein ❤️, which runs alongside the LAD (left anterior descending artery) and drains the anterior interventricular region; the middle cardiac vein 🔁, which travels in the posterior interventricular groove; the small cardiac vein 💫, located in the right coronary sulcus; the posterior vein of the left ventricle 🌀; and the oblique vein of the left atrium (Marshall's vein) 🌙. Apart from these, anterior cardiac veins 🧬 drain directly into the right atrium without joining the coronary sinus, mainly from the anterior surface of the right ventricle, and venae cordis minimae (Thebesian veins) 🔄 are small intramyocardial veins that open directly into all four heart chambers, especially the right atrium and ventricle. These venous pathways are crucial in understanding cardiac physiology, catheterization techniques, coronary sinus pacing, and cardiac vein cannulation in bypass surgery or electrophysiology procedures 🛠️🩺. A thorough knowledge of these veins ensures safe intervention and precise cardiac diagnostics 🧠✨. #VeinsoftheHeart 💙 #CoronarySinus 🌙 #GreatCardiacVein ❤️ #MiddleCardiacVein 🔁 #SmallCardiacVein 💫 #AnteriorCardiacVeins 🧬 #ThebesianVeins 🔄 #CardiacAnatomy 🫀 #VenousDrainage #RightAtrium 💙 #HeartPhysiology #CardiacCirculation 🌊 #StudySmart 🧠 #MBBSNotes 📚 #NEETPG2025 #USMLEStep1 #FMGEReady #YouTubeAnatomy #Electrophysiology 🛠️ #CoronaryBypass 🩺 #AnatomyLecture #CardiologyEssentials