<p><span>The internal capsule is a thick sheet of white matter consisting of projection fibres passing to and from the cerebral cortex. It makes a sharp ‘knee-bend’ or genu around the apex of the lentiform nucleus (Latin: genu, knee). This gives it a V-shape when viewed in axial (horizontal) section (Fig. 3.22). There is therefore an anterior limb (between the lentiform nucleus and the head of the caudate nucleus) and a posterior limb (between the lentiform nucleus and the thalamus).</span></p><p><br></p><p style="text-align: center;"><span><img src="@@PLUGINFILE@@/anterior-limb.png" alt="" width="406" height="346" role="presentation" class="img-responsive atto_image_button_text-bottom"><br></span></p><p style="text-align: center;"><span><br></span></p><p style="text-align: left;"><span><b>Fornix: </b>The fornix (meaning "arch" in Latin) is a C-shaped bundle of nerve fibers in the brain that acts as the major output tract of the hippocampus. The fornix also carries some afferent fibres to the hippocampus from structures in the diencephalon and basal forebrain. The fornix is part of the limbic system.<br></span></p><p style="text-align: center;"><span><img src="@@PLUGINFILE@@/fornix.png" alt="" width="544" height="351" role="presentation" class="img-responsive atto_image_button_text-bottom"><br></span></p><p style="text-align: center;"><span><br></span></p><p style="text-align: left;"><span></span></p><p style="text-align: center;"><span><br></span></p>