Q1. [1] § 5.4 TRANSPORTATION
Which of the following statement (s) is (are) true about human heart ? (a) Right atrium receives oxygenated blood from lungs through pulmonary artery. (b) Left atrium transfers oxygenated blood to left ventricle which sends it to various parts of the body. (c) Right atrium receives deoxygenated blood from different parts of the body through vena cava. (d) Left atrium transfers oxygenated blood to aorta which sends it to different parts of the body.
- A (b) only
- B (a) and (d)
- C (b) and (c)
- D (b) and (d)
Previously asked in CBSE board exam
2024 31/3/1 Q11
Generated by claude-sonnet-4-6 · 2026-06-11 09:48 · grounding rag
Model Answer
Option C: (b) and (c)
Statement (b) is correct — left atrium transfers oxygenated blood to left ventricle, which pumps it to the body. Statement (c) is correct — right atrium receives deoxygenated blood via vena cava.
Explanation
Statement (a) is wrong because pulmonary veins (not arteries) bring oxygenated blood to the left atrium. Statement (d) is wrong because oxygenated blood goes from the left ventricle to the aorta, not directly from the left atrium. Examiners test whether students know which vessel carries oxygenated/deoxygenated blood and the correct sequence of chambers.
If a question refers to an image, map, graph or diagram that is not shown here, find the actual CBSE question paper on the CBSE website:
cbse.gov.in.