Bicuspid and tricuspid valves open when:
- ABlood flows from the right ventricle and left ventricle into the pulmonary artery and aorta,respectively.
- BBlood flows from the pulmonary vein and vena cava into the left and right atria,respectively.
- CBlood flows from the right and left atria into the right and left ventricles,respectively.
- DNone of these.
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View SolutionMatch the valves of the human heart in column $I$ with the respective opening they guard in column $II$ and select the correct option.
Column $I$ Column $II$ $i$. Eustachian valve $a$. Opening of pulmonary aorta $ii$. Thebesian valve $b$. Left atrioventricular aperture $iii$. Mitral valve $c$. Opening of inferior vena cava $iv$. Semilunar valve $d$. Opening of coronary sinus
| Column $I$ | Column $II$ |
| $i$. Eustachian valve | $a$. Opening of pulmonary aorta |
| $ii$. Thebesian valve | $b$. Left atrioventricular aperture |
| $iii$. Mitral valve | $c$. Opening of inferior vena cava |
| $iv$. Semilunar valve | $d$. Opening of coronary sinus |
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Which organ is important as a large reservoir of erythrocytes?
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