<p><b>One of the elevations in the convolutions of the surface of the brain caused by the infolding of the cortex.</b><br></p><p><b><br></b></p><p style="text-align: center;"><b><img src="@@PLUGINFILE@@/the-lateral-surface-human-brain.jpg" alt="The lateral surface of the human brain" width="896" height="625" class="img-responsive atto_image_button_text-bottom"><br></b></p><p style="text-align: center;"><b><br></b></p><p style="text-align: left;"><span><span><b>Sulcus-</b></span><br></span></p><div class="editor-indent" style="margin-left: 30px;"><p style="text-align: left;"><span><span><span><span><b>Literally a groove, trench or furrow. A general term used to designate such a depression especially those on the surface of the brain.</b></span></span></span></span></p></div><p style="text-align: left;"><span><span><span><span></span></span></span></span></p><p lang="en-US" align="LEFT">The Longitudinal fissure is the long sulcus that divides the left and right hemispheres of the brain.<br></p><p></p>