What are the directions that the blood travels through the heart?

Answer 1

Blood from the systemic circulation system is carried by way of the superior and inferior vena cava, both of which empties into the right atrium of the heart. Blood then passes through the tricuspid valve and enters the right ventricle. Next, the blood is pumped out of the right ventricle, through the pulmonary valve, and to the lungs via the pulmonary arteries. Blood gases are exchanged at the lungs as blood flows through the capillary beds of the alveoli. Blood flows back to the heart via the pulmonary veins and enters the left atrium. Blood from the atrium is pumped into the left ventricle through the mitral valve. Finally, Blood then leaves the left ventricle through the aortic valve and enters the aorta. The aorta once again begins the systemic portion of the circulation system and branches off into many arteries.

Answer 2

Let's start at the inferior and superior vena cava. They carry O2 poor blood into the right atrium which then flows to the right ventricle through the tricuspid valve. The right ventricle pumps the blood through the pulmonary semi-lunar valve to the pulmonary artery. It then travels to the lungs so gas exchange can happen and the blood is now O2 rich. It goes back to the heart through the pulmonary vein and into the left atrium. The blood then flows to the left ventricle through the bicuspid valve. Then it goes to the Aorta through the aortic semi-lunar valve and travels to the rest of the body. After the blood is done in the body in goes to the superior and inferior vena cava and it starts all over again.

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Answer 3

Right atrium > tricuspid valve > right ventricle > pulmonary semilunar valve > pulmonary arteries > lungs > pulmonary veins > left atrium > bicuspid valve > left ventricle > aortic semilunar valve > aorta > body tissues except lungs