Question

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

• A. C – Vena cave –takes blood from body parts the right auricle, $PCO_{2} = 45mmHg$
• B. D – Dorsal aorta – takes blood from heart to body parts, $PO_{2} = 95mmHg$
• C. A – Pulmonary vein takes impure blood from body parts, $PO_{2} = 60mmHg$
• D. B – Pulmonary artery – takes blood from heart to lungs, $PO_{2} = 90mmHg$

Answer 1

Answer: (A)

C – Vena cave –takes blood from body parts the right auricle, $PCO_{2} = 45mmHg$