Planum temporale

The planum temporale is a part of the temporal lobe.

Gross anatomy

It is located at the upper and posterior aspect of the temporal lobe. It is bordered:

• anteriorly by Heschl's gyrus
• posteriorly and laterally by the Sylvian fissure 

It is usually larger on the left than on the right; this might explain why the left Sylvian fissure appears longer and more horizontal in most individuals.