Apex of the heart

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Apex of the heart
Sternocostal surface of heart (apex is not labeled, but is visible at bottom right)
Diagram showing relations of opened heart to front of thoracic wall.

Ant. Anterior segment of tricuspid valve.
A O. Aorta.
A.P. Anterior papillary muscle.
In. Brachiocephalic artery (Innominate).
L.C.C. Left common carotid artery.
L.S. Left subclavian artery.
L.V. Left ventricle.
P.A. Pulmonary artery.
R.A. Right atrium.
R.V. Right ventricle.
V.S. Ventricular septum.
Latin Apex cordis
Gray's p.527
TA A12.1.00.007
FMA 223291
Anatomical terminology

The apex of the heart is the lowest superficial part of the heart. Auscultation at the apex is associated with mitral valve closure.

It is directed downward, forward, and to the left, and is overlapped by the left lung and pleura.

External anatomy[edit]

It lies behind the fifth left intercostal space, 8 to 9 cm from the mid-sternal line, slightly medial to the midclavicular line.

Alternately, it can be found about 4 cm below and 2 cm to the medial side of the left mammary papilla.


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

External links[edit]