ANATOMY

Detailed explanation-1: -Blood first enters the heart’s right atrium. A muscle contraction forces the blood through the tricuspid valve into the right ventricle. When the right ventricle contracts, blood is forced through the pulmonary semilunar valve into the pulmonary artery. Then it travels to the lungs.

Detailed explanation-2: -The blood enters the heart’s right atrium and is pumped to your right ventricle, which in turn pumps the blood to your lungs. The pulmonary artery then carries the oxygen-poor blood from your heart to the lungs. Your lungs add oxygen to your blood.

Detailed explanation-3: -Blood flows from the right atrium into the right ventricle through the tricuspid valve.

Detailed explanation-4: -From the right atrium, blood flows through the tricuspid valve into the right ventricle. 3. The right ventricle pumps oxygen-poor blood through the pulmonary valve into the main pulmonary artery.

Detailed explanation-5: -From the left atrium blood flows into the left ventricle. The left ventricle pumps the blood to the aorta which will distribute the oxygenated blood to all parts of the body.