FREE AIIMS MCQ on 23 Nov 2016

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 DAILY FREE MCQ CHALLENGE for Medical PG Preparation

Question
What is the uppermost structure in left lung hilum?
A. Pulmonary vein
B. Pulmonary artery
C. Bronchial artery
D. Left mainstem bronchus

TIPSImportant Question from AIIMS 2007

Answer: B. Pulmonary artery

Explanation :

The pulmonary trunk and pulmonary arteries are located approximately at vertebral level T4, where the arteries are inferior to the aortic arch and azygos vein. The pulmonary arteries follow the bronchial tree throughout the lungs.

The relation of the pulmonary arteries to bronchi at the root (hilum) of the lungs can be remembered by the following mnemonic: Right pulmonary artery is Anterior to the right primary bronchus, and the Left pulmonary artery is Superior to the left primary bronchus (RALS).

 

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Reference: Chapter 5. Superior and Posterior Mediastina. In: Morton DA, Foreman K, Albertine KH. eds. The Big Picture: Gross Anatomy. Reference link

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