in particular , the process of initial prey capture shares four salient functional features with other primitive vertebrates : 1 ) prey capture by suction feeding , 2 ) cranial elevation at the cranio-vertebral joint during the mouth opening phase of the strike , 3 ) the hyoid apparatus plays a major role in mediating expansion of the oral cavity and is one biomechanical pathway involved in depressing the mandible , and 4 ) peak hyoid excursion occurs after maximum gape is achieved .
C0037303
cranial
C0024687
mandible