by physiogyan
Name the veins that drain heart.
The venous blood from the heart is drained by three system of veins:
Coronary sinus : its tributaries are
great cardiac vein
middle cardiac vein
small cardiac vein
Oblique vein of left atrium
Anterior cardiac veins
Venae cordis minimae
Describe briefly Coronary sinus and its tributaries.
• Drains most of the venous blood from the heart.
• Is a short , wide venous cannel about 2.5cm. longnand lies in the posterior par of the coronary sulcus.
• Its left end is continuous with the great cardiac vein.
• Its right end opens in the right atrium of the heart between the openings of inferior vena-cava and right atrioventricular orifice.
• Tributaries
Great cardiac vein – lies along anterior interventricular sulcus
Middle cardiac vein – lies along the posterior interventricular sulcus
Small cardiac vein –lies along right posterior coronary sulcus
Right marginal vein - along the inferior boder
Oblique vein of the left atrium
Posterior ventricular vein

Which part of the heart is drained by Anterior cardiac veins and where do they open?
• Several small veins, that drain blood from the anterior aspect of right ventricle.
• They open into the right atrium.
What are venae cordis minimae?
• Drain venous blood from the endocardium and deep part of myocardium.
• Open directly into the every chamber of the heart.

Physiogyan| August 3, 2018 at 7:58 am | Tags: coronary sinus, venous drainage of heart | Categories: Anatomy, Thorax |
