Left border of heart on chest X–ray is formed by -a) Aortic archb) Left Pulmonary arteryc) Right atriumd) Left ventriclee) Right ventricle
Amongst the given options, left heart border is formed by Aortic knuckle (formed by aortic arch) and left ventricle.
Some guides have included left pulmonary artery in the answer. But, it is pulmonary trunk which forms left heart border (not left pulmonary artery).
b
c
ac
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