Question

The given figure shows the schematic plan of blood circulation in humans with labels A to D. Identify the label and give its function?

• A. C - vena cava - takes blood from body parts to the right auricle, Pco2 = 45 mm Hg
• B. D - Dorsal aorta -takes blood from heart to body parts, Po2 = 95 mm Hg
• C. A - Pulmonary vein - takes impure blood from body parts, Po2 = 60 mm Hg
• D. B - Pulmonary artery - takes blood from heart to lungs, Po2 = 90 mm Hg

Answer 1

The correct option is A C - vena cava - takes blood from body parts to the right auricle, Pco2 = 45 mm Hg

In the given figure: A is pulmonary vein which brings pure blood from lungs to the left atrium, B is dorsal aorta which carries blood from heart to body parts, C is vena cava which carries impure blood from body parts to right auricle, and D is pulmonary artery which takes impure blood from heart to lungs.