Question

question in this transverse section, superior view of the heart, what valves are closed during ventricular contraction? answer pulmonary valve and aortic valve tricuspid (right av valve) and pulmonary valve tricuspid (right av valve) and bicuspid (left av valve) bicuspid (left av valve) and aortic valve i dont know yet

Explanation:

During ventricular contraction (systole), the atrioventricular (AV) valves (tricuspid on the right and bicuspid/mitral on the left) close to prevent back - flow of blood into the atria. The semilunar valves (pulmonary and aortic) open during ventricular contraction to allow blood to be ejected from the ventricles.

Answer:

C. Tricuspid (right AV valve) and bicuspid (left AV valve)