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Science · 2026 · 1 mark
CBSE 2026 · Region 1 · Set 3 · Q6
Study the given diagram of the heart, with blood vessels marked '1' and '2'. From the following statements, establish the relationship between heart…
Study the given diagram of the heart, with blood vessels marked '$\displaystyle 1$' and '$\displaystyle 2$'. From the following statements, establish the relationship between heart and /or the two blood vessels :
(ii)
Blood vessel $\displaystyle 2$ - It carries oxygen rich blood from the lungs.
(iii)
Blood vessel $\displaystyle 2$ - Left atrium relaxes as it receives blood from this blood vessel.
(iv)
Blood vessel $\displaystyle 1$ - Right atrium has thick wall as it has to pump blood to this vessel. The option with correct statements is :
Official answer
(D)
(i), (ii) and (iii)
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CBSE Class 10 Science past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.