The blockage of blood flow in the proximal pa of the anterior interventricular aery could deprive a large area of hea tissue of blood supply, unless a substantial retrograde flow into this aery develops an impoant anastomosis with which other aery?
Correct Answer: Posterior interventricular
Description: The anterior interventricular aery and posterior interventricular aery travel on the anterior and posterior surfaces of the interventricular groove. These two vessels often anastamose. If there was a very extensive anastomoses between the anterior and posterior interventricular aeries, it is possible that the posterior interventricular aery might supply the tissue usually fed by the anterior interventricular aery. The other aeries listed would not be able to anastamose with anterior interventricular aery; they supply other areas of the hea. Ref: Seward J.B., Malouf J.F., Edwards W.D., Tajik A. (2011). Chapter 4. Functional Anatomy of the Hea. In V. Fuster, R.A. Walsh, R.A. Harrington (Eds), Hurst's The Hea, 13e.
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