Question

Truncus arteriosus receives blood from

• A. Right auricle
• B. Left auricle
• C. Ventricle
• D. Venae cavae

Answer 1

The correct option is C Ventricle

The right anterior side of the ventricle, truncus arteriosus arises. The ventricle opens into truncus arteriosus and the opening between these two is guarded by semilunar valves.

When ventricles contract semilunar valves are pushed apart and make a free passage for the blood from the ventricles to truncus arteriosus but prevent backflow of blood from truncus arteriosus into the ventricles.

So the correct answer is 'Ventricle'.