MICROANATOMY

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 right ventricle pumps blood to the lungs, and the left ventricle pumps blood to all other organs. The two atria (right and left) accept the blood returning to the heart (from the body’s tissues and from the lungs, respectively).

Detailed explanation-3: -The right ventricle pumps blood out through the pulmonary artery on its way to the lungs while the left ventricle ejects its blood into the aorta, the largest artery in the body, from where it is circulated throughout the rest of the body.

Detailed explanation-4: -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.

Detailed explanation-5: -Right ventricle (VEN-trih-kul): one of the four chambers of the heart. The right ventricle pumps blood low in oxygen to the lungs. In the lungs, the blood then gets a “refill” of oxygen. Reviewed by: KidsHealth Medical Experts.