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a. Mandible- formed from the splanchnocranium and composed mostly
of the large dentary bone; articulates with the upper jaw by Meckel’s cartilage
b. Premaxillary- a pair of bones at the tip of the cranium; it is partially tooth bearing c. Vomer- wedged between the frontal and premaxillary bones, it is partially covered by a cartilaginous process of the chondrocranium d. Frontal- runs down the center of the skull, directly posterior to the premaxillary e. Palatoquadrate/Pterygoid- forms the central portion of the lateral margin f. Prootic- lies lateral to the parietal near the suture of the parietals and frontals; partially visible in both dorsal and lateral views of the skull h. Opisthotic- lies posterior to the parietal i. Occipital condyle- part of the exoccipitals, which form the skull lateral and ventral to the foramen magnum; help provide articulation for the first cervical vertebra j. Parietal- slender paired bones posterior to the frontals; k. Parasphenoid - A triangular-shaped plate that forms most of the skull's ventral surface l. Foramen magnum - The large opening in the posterior side of the skull where the spinal chord passes through n. Angular - the bone that primarily composes the mandible medially. o. Dentary - the bone that composes the mandible laterally. p. Collumella - anterior to the opisthotic, which is a disc-shaped covering over the oval window. |
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