MICROANATOMY

Detailed explanation-1: -In the lungs, the blood receives oxygen then leaves through the pulmonary veins. It returns to the heart and enters the left atrium. From there, blood is forced through the mitral valve into the left ventricle.

Detailed explanation-2: -mitral valve: located between the left atrium and the left ventricle.

Detailed explanation-3: -Mitral Valve Opens to allow blood to flow from the left atrium to the left ventricle.

Detailed explanation-4: -Blood travels through the bicuspid valve to the left atrium. Both the aortic and the pulmonary valves are semilunar valves.

Detailed explanation-5: -Blood flows from the right atrium into the right ventricle through the bicuspid valve. From the left ventricle, blood is pumped into the aorta, through the aortic semilunar valve.