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Figure shows schematic plan of blood circulation in human with labels  A to D. Identify to label and give its function/s

  • A - pulmonary vein - takes impure blood from body parts,pO2 = 60 mmHg

  • B - pulmonary artery - takes blood from heart to lungs, pO2 = 90 mmHg

  • C - vena cava - takes blood from body parts to right auricle, pCO2 = 45 mmHg

  • D - dorsal aorta -takes blood from heart to body parts, pO2 = 95 mmHg

Answer

C.

C - vena cava - takes blood from body parts to right auricle, pCO2 = 45 mmHg

A -  pulmonary vein takes impure blood from body part, pO2 = 60 mmHg

B - Pulmonary artery - takes blood from heart to lungs, pO2 = mmHg

C- Vena cava -takes blood from body parts to right auricle, pCO2 = 45 mm Hg

D- Dorsal aorta takes blood from heart to body parts, pO2 = 95 mm Hg

A -  pulmonary vein takes impure blood from body part, pO2 = 60 mmHg

B - Pulmonary artery - takes blood from heart to lungs, pO2 = mmHg

C- Vena cava -takes blood from body parts to right auricle, pCO2 = 45 mm Hg

D- Dorsal aorta takes blood from heart to body parts, pO2 = 95 mm Hg