Figure shows schematic plan of blood circulation in human with labels $A$ to D. Identify the label and give…

Figure shows schematic plan of blood circulation in human with labels $A$ to D. Identify the label and give its function/s
  1. A-pulmonary vein-takes impure blood from body parts, $\mathrm{pO}_2=60 \mathrm{mmHg}$
  2. B-pulmonary artery-takes blood from heart to lungs, $\mathrm{pO}_2=90 \mathrm{mmHg}$
  3. C-vena cava-takes blood from body parts to right auricle, $\mathrm{pCO}_2=45 \mathrm{mmHg}$
  4. D-dorsal aorta-takes blood from heart to body parts, $\mathrm{pO}_2=95 \mathrm{mmHg}$

Solution

A-Pulmonary vein takes impure blood from body parts, $\mathrm{pO}_2=60 \mathrm{mmHg}$. B-Pulmonary artery-takes blood from heart to lungs, $\mathrm{pO}_2=90 \mathrm{mmHg}$. $\mathrm{C}-$ Vena cava-takes blood from body parts to right auricle, $\mathrm{pCO}_2=45 \mathrm{mmHg}$ D-Dorsal aorta-takes blood from heart to body parts, $\mathrm{pO}_2=95 \mathrm{mmHg}$.

Asked in: NEET 2013 (All India)

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