Question

describe what happens to a red blood cell as it moves from the right atria of the heart through the body and back to the right atria.

Answer 1

The red blood cell moves from the right atrium to the right ventricle via the tricuspid valve. From there it passes through the pulmonary valve into the pulmonary artery. The next stop is the lungs where the respiratory system meets the circulatory system.

Answer 2

After leaving the heart, the red blood cell travels through the pulmonary artery to the lungs. It picks up oxygen making the deoxygenated red blood cell now an oxygenated blood cell. The blood cell then makes it way back to the heart via the pulmonary vein into the left atrium.

Step-by-step explanation: