Left border of heart

  (Redirected from Left margin)

The left border of heart (or left margin, or obtuse margin) is shorter than the right border, full, and rounded: it is formed mainly by the left ventricle, but to a slight extent, above, by the left atrium.

Left border of heart
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Sternocostal surface of heart.
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Heart seen from above.
Details
Identifiers
LatinMargo obtusus
Anatomical terminology

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.

ReferencesEdit

This article incorporates text in the public domain from page 528 of the 20th edition of Gray's Anatomy (1918)

External linksEdit