develops from ends during starts during death mandibular head muscle m. levator mandibulae articularis XAO:0004331 2012-05-05T05:15:00Z xenopus_anatomy Muscle that is part a complex that arises from the skull roof and acts to elevate or close the lower jaw. It originates from the ventral bend of the anlage of processus muscularis palatoquadrati. It runs ventrally near the levator mandibulae longus supeficialis and inserts anterior of it at Meckel's cartilage. mlma articularis mandibular levator muscle eriksegerdell m. levator mandibulae articularis primordium NF stage 41