Dorso-laterally the basisphenoidis joined by the alisphenoid, which forms most of the posterior wall of the orbit.
According to Koelliker there are two centres in Man in both the basisphenoid and presphenoid.
The basisphenoid with the alisphenoids, which develop independently in the side walls of the brain, may, however, still be considered as forming a vertebra, though the resemblance is not so great as in the case of the occipital ring.
The basisphenoid appears in the basilar plate, but in front of the notochord, nor does it arise in exactly the same way as the centrum of a vertebra.
The side parts of the basisphenoid and presphenoid (forming the alisphenoids and the orbitosphenoids respectively) develop in cartilage separately from the cranial basis, not like the exoccipitals in continuity with it.
And in his criticism of the vertebral theory of the skull he advanced as an argument against the basisphenoid being a vertebral centrum the fact (established by Kerkring, 1670), that it develops from two centres.
Querendaro in which the shape of the interparietal is exactly intermediate between those of topotypes of the two subspecies and also in that the basisphenoid is wider than in acutus but narrower than in alleni.
In large size of tympanic bullae and wider basisphenoid the specimen agrees with acutus, but otherwise is nearly as small as jaliscensis to which it is here referred.
The parietals and frontals, being membrane bones, are not comparable to the supra-occipital, in the way that the presphenoid and basisphenoid are to the basi-occipital.
Both in front of and behind the basisphenoid there are considerable vacuities in the walls of the cranium; through the posterior of these openings (fig.
The basi-occipital and basisphenoid are never ossified.
From the sides of the basisphenoid arise the =alisphenoids= (fig.
Dorsolaterally thebasisphenoid articulates with the =alisphenoids=.
Further back the alisphenoids meet one another for a narrow area, and then diverge again, so that between each and the rostrum of the basisphenoid there appears an opening (fig.
The carotid canal perforates the basisphenoid and not the tympanic bulla.
The basisphenoid appears on the surface immediately in front of the basi-occipital.
The basisphenoidis well ossified, and there is no parasphenoid.
The sutures between the basi-occipital and basisphenoid, and between the basisphenoid and presphenoid remain open throughout life.
Where the palatoquadrate articulates with the basisphenoid at the antotic and basipterygoid processes, as in the Devonian coelacanths, it can not swing so far laterally as where it articulates with only the dorsal, antotic process.
The knoblike antotic processes on the basisphenoidare unlike those of any other known coelacanth.
Synaptotylus is distinguished from all other coelacanths by a basisphenoid having large, knoblike antotic processes each connected by a low ridge to a small basipterygoid process.
A large Microtus montanus with a relatively short tail; short molar series; broad zygomatic arches well rounded in lateral outline when viewed from above; small and flattened bullae; raised basioccipito-basisphenoid suture.
From British Museum Catalogue of Snakes)] Quadrate longer than supratemporal; maxillary much longer than quadrate, nearly straight in front of prefrontal; a large vacuity between the frontal bones and the basisphenoid Coelopeltis.
The anterior end of the notochord in the developing rabbit or dog lies where the middle of the basisphenoidbone is destined to be.
It is difficult to avoid injury to the pituitary body embedded in the basisphenoid bone.
In front of the basioccipital is the basisphenoid with an alisphenoid on each side.
Farther ventrally the frontal joins with the parasphenoid, which at this place forms the ventral extent of the skull, and together with the basisphenoid forms the ventral part of the posterior three-fourths of the skull.
Posterolateral to the parietal and dorsal to the posterior part of the basisphenoid is the prootic.
The basisphenoidforms the floor of the middle part of the cranial cavity and the ventromedial down-pouching that contains the pituitary body.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "basisphenoid" in a variety of sentences. We hope that you will now be able to make sentences using this word.
