B letter in the diagram below represents the location where deoxygenated blood returns to the heart from the body.
What is deoxygenated blood?
"Deoxygenated blood refers to the blood that has a low oxygen saturation relative to blood leaving the lungs."
What is the function of deoxygenated blood?
"The deoxygenated blood returns from the body to the right atrium and from there enters the right ventricle that pumps it to the lungs through the main pulmonary artery. In the lungs, the blood refills its oxygen supply and gets rid of carbon dioxide."
What are the steps of the circulatory system?
The steps involved in blood flows through the heart in the following order:
- The blood first enters the right atrium.
- The blood then flows through the tricuspid valve into the right ventricle.
- When the heart beats, the ventricle pushes blood through the pulmonic valve into the pulmonary artery.
- The pulmonary artery carries blood to the lungs where it “picks up” oxygen.
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