label: Floor of the Fourth Ventricle
label_lc: floor of the fourth ventricle
description: "The lower or ventral portion of the fourth ventricle transversed by the median sulcus with numerous nuclei and structures including the striae acusticae (or medullaris), fovea inferior and fovea superior, clava, obex, area postrema, and the trigonum hypoglossi and trigonum vagi."