Fig 1.

Key anatomical regions on the cranium and mandible in Mus musculus: as, articular surface; cnp, condyloid process; ap, angular process; mr, masseteric ridge; cp, coronoid process; dr, dental ridge; prm, premaxilla; nas, nasal; fr, frontal; aef, anterior ethmoidal foramen; mx, maxilla; zpm, zygomatic process of maxilla; bs, basosphenoid; par, parietal; zpsq, zygomatic process of squamosal bone; ipar, interparietal; eam, external auditory meatus; tb, tympanic bulla; pop, paraoccipital process; oc, occipital condyle; pal, palatine; as, alisphenoid; jb, jugal bone; jss, jugosquamosal suture; jms, jugomaxillary suture.