Right border of heart

From Wikipedia, the free encyclopedia
  (Redirected from Acute margin)
Jump to: navigation, search
Right border of heart
Sternocostal surface of heart. (Right margin visible but not labeled.)
Latin margo dexter cordis
Gray's p.528
Anatomical terminology

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[edit]

This article incorporates text from a public domain edition of Gray's Anatomy.