The blood leaving the tissues becomes richer in
The blood leaving the tissues becomes richer in
- carbon dioxide
- water
- heamoglobin
- oxygen
Answer
The left ventricle pumps blood into the aorta which in turn branches and delivers oxygenated blood to the major body regions and organs. The oxygen is consumed in cellular respiration and the carbon dioxide produced during respiration enters into blood.
The anterior vena cava collects deoxygenated blood from the head, chest, and arms and enters the right atrium while the inferior vena cava collects blood from the lower body regions. Both venae cavae pass the deoxygenated blood to the right atrium. Thus, blood from tissues is rich in carbon dioxide.
Deoxygenated blood from right atrium enters right ventricle and pulmonary arteries carry deoxygenated blood from right ventricle to lungs for oxygenation.
The correct option is A.