. Chordate morphology. Morphology (Animals); Chordata. nasal septum foramen epiphaniale jf"; cribriform plate, orbitonasal fissure. optic foramen, dorsum selloe ola temporalis basicochleor fenestra hiatus faciali; frontal preoptic pillar foramen prechiasmoto ala hypochiasmota metoptic pillar carotid foramen alicochlear commissure internal auditory meatus parietal squamosal postporietol maxilla, infraorbital foramen I'ugal polatii pterygoid, squamosal. Meckel's cartilage dentary. tympanic malleus fenestra cochleae hypoglossal foramina postporietol. palatine process poraseptol cartilage eth
. Chordate morphology. Morphology (Animals); Chordata. nasal septum foramen epiphaniale jf"; cribriform plate, orbitonasal fissure. optic foramen, dorsum selloe ola temporalis basicochleor fenestra hiatus faciali; frontal preoptic pillar foramen prechiasmoto ala hypochiasmota metoptic pillar carotid foramen alicochlear commissure internal auditory meatus parietal squamosal postporietol maxilla, infraorbital foramen I'ugal polatii pterygoid, squamosal. Meckel's cartilage dentary. tympanic malleus fenestra cochleae hypoglossal foramina postporietol. palatine process poraseptol cartilage ethmoturbinol I lamina tronsversolis posterior pterygoid process .carotid foramen mandibular cartilages hyoid stapes mastoid process synotic and posterior tectum Figure 3-14. Chondrocranium and early ossifications in the hare, lepus cun/cu/us. (After Voit, 1909) jugular foramen foramen magnum be perforated by the maxillary branch of the trigeminal nerve ( in the latter instance lying between the maxil- lary and mandibular branches). The posterior basicochlear fissure may be confluent with the jugular foramen as it is in some placentals. There may be three separate pairs of hypoglossal foramina. The preoptic pillar may attach to the lamina orbitonasalis through its ala minima rather than with the trabecula. The lamina transversus posterior of the nasal capsule may be present, along with the anterior lamina, and is connected with the paraseptal cartilage. The marsupial hyoid and branchial cartilages are like those of the placental; the second and third ceratobranchial form the thyroid cartilage. Alonofreme The fully formed chondrocranium of Ormtho- rhynchus (Figure 3-15) has well-developed side walls and a broad tectum posterior, which includes a connection between the parietal plates called the synotic tectum. The occipital condyles are large and the otic capsules are completely con- nected with the side walls. There is no hypoglossal foramen DEVELOPMENT OF THE HEAD SKELETON
Size: 1164px × 2148px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1900, bookcollectionbiodiversity, bookleafnumber73
