This site is intended for healthcare professionals
General Practice Notebook
Login | Register
Medical search

sternocostal surface (heart, anatomy)

FREE subscriptions for doctors and students... click here
You have 3 open access pages.

The sternocostal surface of the heart is directed anteriorly, superiorly and slightly to the left. It is formed by the left, right, superior and inferior borders of the heart.

It consists of the anterior surfaces of the:

  • right atrium: to the right and superior to the anterior atrioventricular groove
  • right ventricle:
    • forms two thirds of the anterior surface
    • separated by the anterior interventricular groove from the anterior surface of the left ventricle
  • left atrium: minimal contribution; its auricle may overlap the right superior surface of the heart
  • left ventricle: forms a small part of the far left sternocostal surface

Anteriorly, the sternocostal surface is separated by pericardium from the:

  • posterior of the body of the sternum
  • sternocostalis muscle
  • third to sixth costal cartilages on the left
  • mediastinal pleura

The acute angle at the anterior edge of the lungs fills the pleurae and is almost continuous across the midline except for a small, triangular area on the left of the sternocostal surface. The cardiac notch of the lung borders this laterally.


General Practice Notebook
General Practice Notebook
The information provided herein should not be used for diagnosis or treatment of any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions. Copyright 2016 Oxbridge Solutions LtdĀ®. Any distribution or duplication of the information contained herein is strictly prohibited. Oxbridge Solutions LtdĀ® receives funding from advertising but maintains editorial independence. GPnotebook stores small data files on your computer called cookies so that we can recognise you and provide you with the best service. If you do not want to receive cookies please do not use GPnotebook.