f. cribrosa inferior et posterior

The posterior portion of the fo ula inferior which presents the opening of the pa age of the ramus ampullae posterior is of the auditory nerve, f. crural is. A depre ion in, or slight pouch of, the peritoneum over Gimbernat's ligament and the crural ring. f. limbic a. A f. separating the olfactory region of the brain from the mantle, f. malleoli lateral is. A slight depre ion upon the distal end of the fibula just in front of the groove for the peroneal tendons, f. nervi olfact or i i. A depre ion on the surface of the anterior lobe of the brain in which the optic nerve lies. f. nuchae. A slight mesal depre ion which begins just below the external occipital protuberance, and descends over the lig amentum nuchae between the prominences formed by the complexus and trapezius muscles of the two sides, f. of the right auricle of the heart. An oval depre ion at the lower part of the septum auriculorum and to the left of the orifice of the inferior vena cava. It represents the foramen ovale of the fetal heart, f. pharyngis.