Heart - LO 9
9. Describe the venous drainage of the heart.
Coronary sinus: located in the coronary sulcus and most veins of the heart drain here
Tributaries include:
Great cardiac v.: typically the largest tributary of the coronary sinus
Travels next to the anterior IV a. in the anterior IV sulcus
Part of the vein travels in the coronary sulcus with the circumflex br. of the LCA to eventually drain into the coronary sinus
Middle cardiac v.: travels within the posterior IV sulcus with the posterior IV br. of the RCA to drain into the coronary sinus
Small cardiac v.: typically visible near the inferior border of the heart, near the R. marginal br. of the RCA
Anterior cardiac vv.: unique among cardiac vv. in that they typically drain directly into the R. atrium, rather than into the coronary sinus
Travel superficially over the RCA from the R. ventricle to the R. atrium