Question

Veins take blood back to the heart. Which gas would be most abundant in a vein that takes blood from muscle cells in the arm back to the heart? carbon dioxide oxygen nitrogen hydrogen

Answer 1

The veins take carbon dioxide from different tissues to the heart .

Answer 2

Carbon dioxide is most abundant in a vein that takes blood from muscle cells in the arm back to the heart

Explanation:

• Veins are blood vessels that carry deoxygenated blood towards the heart from various parts of the body.
• Deoxygenated blood means the blood which lacks oxygen.
• In deoxygenated blood, Carbon dioxide gas is present.
• In human body, heart pumps the blood.
• The arteries carry oxygenated blood towards body parts and supply oxygen to the organs.
• Cells of organs release Carbon dioxide in blood after respiration.

 

• Pulmonary and umbilical veins are the only veins that carry oxygenated blood in the entire body.