Question

A patient suffering from severe chest pain is admitted to the ER. After a series of tests, it is found that blood is flowing back into the left atrium as it is pumped into the left ventricle. Which valve is responsible for preventing this from happening?

a. the aortic valve
b. the mitral valve
c. the pulmonary valve
d. the tricuspid valve

Answer 1

D. the tricuspid valve

Answer 2

the miral valve

Step-by-step explanation:

the miral valve us between the left atrium and left ventricle

edge 2021 biology test