Location + Surface/ borders
100

This area of the heart  is 

-Majority of the heart is underneath the sternum 

- Apex of the Heart 

- Formed by the inferolateral portion of the left ventricle 

- Lies posterior to the left 5th ICS on the mid-clav line 

- Best area on the chest wall to auscultate the mitral valve → known as the “apex beat” or “PMI” 

 

apex of the heart

200

This area of the heart is:

- Opposite of the apex 

- Formed mainly by the LA and a small part of the RA 

- Base of the Heart

300

Formed mainly by the RV

Anterior (Sternocostal)

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