Which wall is indicated by the arrow on this video?

Comprehensive and Detailed Explanation From Exact Extract:

The apical two-chamber echocardiographic view displays the inferolateral wall (also called posterior lateral). The arrow points to this inferolateral segment, which is located inferiorly and laterally in the left ventricle.

Anteroseptum and inferoseptum relate to the interventricular septum, while anterolateral is the anterior lateral wall, opposite the inferolateral wall. Correct regional wall motion assessment is essential for ischemic disease evaluation.

This identification and terminology are described in ASE stress echocardiography and chamber quantification guidelines【12:ASE Stress Echocardiography Guidelines†p.310-315】【16:Textbook of Clinical Echocardiography, 6e†p.380-385】.