NEET Biology Body Fluids And Circulation Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation

Question & Answer Discuss:

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

(a) B -Pulmonary artery - takes blood from heart to lungs, $PO_{2}$ = 90 mm Hg

(b) A -Pulmonary vein - takes impure blood from body parts, $PO_{2}$ = 60 mm Hg

(c) C-Vena Cava - takes blood from body parts to right auricle, $PCO_{2}$ = 45 mm Hg

(d) D-Dorsal aorta - takes blood from heart to body parts, $PO_{2}$ = 95 mm Hg