Question

Sinus venous opens in which part of heart?
(A) Right auricle
(B) Left auricle
(C) Ventricle
(D) Auricle and Ventricle

Answer 1

Sinus venous opens in Left auricle part of the heart.

In the embryo, the thin walls of the sinus venous are connected just below the right ventricle and medially with the left atrium but they are free to rest of their extent.

When the left portion shirks in size it will form the right atrium and left atrium (oblique vein).

Answer 2

Hi!!

Here's your answer!!

Option ( B )

Left auricle

Hope this helps you!!