Left margin of heart: Difference between revisions
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Latest revision as of 16:49, 9 August 2012
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
The left margin of heart (or obtuse margin) is shorter than the right border of heart, full, and rounded: it is formed mainly by the left ventricle, but to a slight extent, above, by the left atrium.
It extends from a point in the second left intercostal space, about 2.5 mm. from the sternal margin, obliquely downward, with a convexity to the left, to the apex of the heart.