Right border of heart

Right border of heart
Sternocostal surface of heart. (Right margin visible but not labeled.)
Latin	margo dexter cordis
Gray's	subject #138 528

The right margin of the heart (right border of heart) is long, and is formed by the right atrium above and the right ventricle below.

• The atrial portion is rounded and almost vertical; it is situated behind the third, fourth, and fifth right costal cartilages about 1.25 cm. from the margin of the sternum.

• The ventricular portion, thin and sharp, is named the acute margin; it is nearly horizontal, and extends from the sternal end of the sixth right coastal cartilage to the apex of the heart.

External links

• 758448188 at GPnotebook

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.