part of part of in lateral side of develops from develops from frontonasal prominence medial nasal prominence http://upload.wikimedia.org/wikipedia/commons/8/85/Gray45.png medial nasal process EHDAA:4792 EHDAA2:0001076 Fusion of right and left medial nasal processes forms a primary palate rostrally and the nasal septum caudally. The incisive bone, including upper incisor teeth and the rostral up- per lip, are derived from the primary palate. The nasal septum consists of bone, cartilage, and a patch of soft tissue membrane that separates right & left halves of the nasal cavity. The central area of the two limbs of a horseshoe-shaped mesenchymal swelling that lie medial to the olfactory placode or pit in the future nasal region of the embryo; it joins with the ipsilateral maxillary prominence in the formation of half of the upper jaw, and the nasal tip and philtrum of the upper lip develop from it. VHOG:0000804 EMAPA:16808 medial-nasal process SCTID:308877001 UBERON:0004068 FMA:295858 medial nasal swelling Wikipedia:Medial_nasal_prominence prominentia nasalis medialis nasomedial prominence embryonic head embryonic nasal process