Question

Which of the following statements accurately describes how blood flows through the heart?

A. Oxygen-rich blood is carried in the right pulmonary veins from the left lung to the right atrium.
B. Oxygen-rich blood is carried in the aorta from the left ventricle to the body.
C. Oxygen-poor blood is carried through the left pulmonary veins to the left atrium.
D. Oxygen-poor blood is carried through the inferior vena cava to the left atrium.

Answer 1

The correct statement that explains blood flow through the heart is option B, where oxygen-rich blood is carried from the left ventricle to the body through the aorta. This occurs after the right ventricle has sent oxygen-poor blood to the lungs, where it becomes oxygenated and returns to the left atrium via the pulmonary veins.

Step-by-step explanation:

The correct statement that accurately describes how blood flows through the heart is: B. Oxygen-rich blood is carried in the aorta from the left ventricle to the body. The process of blood circulation includes several major steps, as follows:

• Oxygen-poor blood is returned to the right atrium from throughout the body via the superior and inferior vena cava.
• The right atrium pumps the blood through the tricuspid valve into the right ventricle.
• The right ventricle pumps the blood into the pulmonary artery, which carries it to the lungs for gas exchange.
• Oxygen-rich blood is then carried back to the heart by the pulmonary veins, entering the left atrium.
• The left atrium sends the blood through the mitral valve into the left ventricle.
• Finally, the left ventricle pumps the oxygen-rich blood into the aorta, which distributes it to the rest of the body.

Therefore, options A, C, and D are incorrect as they either describe the wrong side of the heart for the oxygenation state of the blood or the incorrect path the blood takes.

Answer 2

B. Oxygen-rich blood is carried in the aorta from the left ventricle to the body.

Superior and inferior vena cava enters the right atrium which is pumped by the tricuspid valve to the right ventricle and to the pulmonary valve to the pulmonary artery then to the lungs from the lungs back thru the pulmonary veins entering the left atrium pumped by the mitral valve to the left ventricle to the aortic valve to the aorta.



The circulatory system is important in meeting the needs of all cells in the body because it offers means of transport by which cells obtain the materials needed to live and function.