Question map
Match List I with List II and select the correct answer using the code given below the lists : List I List II (Blood Vessel) (Function) A. Pulmonary 1. Carries blood from artery lungs to heart B. Capillaries 2. Carries blood to heart muscle C. Coronary 3. Connection between artery arteries and veins D. Pulmonary 4. Carries blood from vein heart to lungs Code : A B C D
Explanation
The human circulatory system utilizes specialized vessels for transport. The pulmonary artery (A) carries deoxygenated blood from the heart to the lungs for oxygenation. Capillaries (B) are microscopic vessels that serve as the connection between arteries and veins, facilitating the exchange of nutrients and gases at the cellular level [4]. The coronary artery (C) is specifically responsible for supplying oxygenated blood to the heart muscle itself to ensure its continuous function [3]. Finally, the pulmonary vein (D) carries freshly oxygenated blood from the lungs back to the heart's left atrium [2]. Matching these functions results in the sequence A-4, B-3, C-2, and D-1. This distinction is unique because, in the pulmonary circuit, the roles of arteries and veins regarding oxygen saturation are reversed compared to the systemic circuit.
Sources
- [1] Science , class X (NCERT 2025 ed.) > Chapter 5: Life Processes > The tubes – blood vessels > p. 93
- [3] Science , class X (NCERT 2025 ed.) > Chapter 6: Control and Coordination > 6.3 HORMONES IN ANIMALS > p. 109
- [4] https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/circulatory-system
- [2] Science , class X (NCERT 2025 ed.) > Chapter 5: Life Processes > Our pump — the heart > p. 92