The maxillary palps may, however, be present and these may be visible in mounted specimens but may be confused with the antennae.

The maxillary palps have five segments, labial palps three, in both the most distal segment is enlarged.

The head also has an elongated, forward-projecting proboscis used for feeding, and two maxillary palps.

Their mouthparts are partially retractable, with simple chewing mandibles and long maxillary palps.

Some specimens of Dimetrodon have been hypothesized as males because they have thicker bones, larger sails, longer skulls, and more pronounced maxillary " steps " than others.

Paranasal sinuses are a group of four paired air-filled spaces that surround the nasal cavity ( maxillary sinuses ), above the eyes ( frontal sinuses ), between the eyes ( ethmoid sinuses ), and behind the ethmoids ( sphenoid sinuses ).

* the maxillary sinuses, also called the maxillary antrechea and the largest of the paranasal sinuses, are under the eyes, in the maxillary bones.

There are several paired paranasal sinuses, including the frontal, ethmoid, maxillary and sphenoid sinuses.

Another cause of chronic sinusitis can be from the maxillary sinuses that are situated within the cheekbones.

Anatomically, the pikes are characterized by the presence of shark-like, maxillary teeth, a mesocoracoid, and the absence of an adipose fin, breeding tubercules, and pyloric cecae.

** the maxillary sinuses, also called the maxillary antra and the largest of the paranasal sinuses, are under the eyes, in the maxillary bones.

The maxillary teeth are the maxillary central incisor, maxillary lateral incisor, maxillary canine, maxillary first premolar, maxillary second premolar, maxillary first molar, maxillary second molar, and maxillary third molar.

They are: maxillary first molar, maxillary second molar, maxillary third molar, mandibular first molar, mandibular second molar, and mandibular third molar.

Aquatic hydrophilids are notable for their long maxillary palpi, which are longer than their antennae.

:* A. Mandible with coronoid bone ; nasals in sutural contact with frontals and prefrontals ; transverse bone short, not projecting much beyond cranium ; maxillary not half as long as mandible, which is not longer than skull ( to occiput ): Eryx.

::::* 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.

::::* Quadrate not longer than supratemporal ; maxillary little longer than quadrate, strongly curved in front of prefrontal: Macroprotodon

::::* Quadrate longer than supratemporal ; maxillary little longer than quadrate, nearly straight in front of prefrontal: Tarbophis

From a facial aspect, maxillary canines are approximately 1mm narrower than the central incisor.

From a facial aspect, the mandibular canine is noticeably narrower mesio-distally than the maxillary one, even though the root may be just as long ( and sometimes bifurcated ).

As in the maxillary canine, the mesial incisal edge ( or cusp ridge ) is shorter than the distal side, however, the cusp is displaced slightly lingual relative to the cusp of the maxillary canine.

This is accomplished by translation of the condyle down the articular eminence ( in the upper portion of the TMJ ) without any more than the slightest amount of rotation taking place ( in the lower portion of the TMJ ), other than that necessary to allow the mandibular incisors to come in front of the maxillary incisors without running into them.

The lower surface of the bone may bear several teeth, forming a second row behind those of the maxilla ; in many cases, these are actually larger than the maxillary teeth.

* I. Quadrate articulating with the cranium, supratemporal absent ; mandible much shorter than the skull, with coronoid bone ; maxillary small, on lower aspect of cranium ; pterygoids not extending to quadrate ; nasals forming long sutures with the premaxillary, prefrontals, and frontal: Typhlops.

The snout was triangular in outline and sharply pointed, ending in an upper beak of which the cutting edge was markedly lower than the maxillary tooth row.

Postcanine dentition of P. unio is documented by 13 dentulous, fragmentary mandibles, a fragmentary maxillary and more than 50 isolated teeth from Garbani Locality 80 km west of Purgatory Hill.

The tooth rows of Ornitholestes were short, with the dentary ( lower ) row being even shorter than the maxillary ( upper ) row, even though the dentary bone itself was exceptionally long at the back, reaching a point below the middle of the eye socket.

:* It is without dispute that mandibular wolf teeth are more likely to cause interference than maxillary wolf teeth because the bit is drawn towards the mandible with most bit / bridle arrangements.

The nickname " saber-tooth " refers to the extreme length of their maxillary canines.

From these four ganglia the PSN complete their journey to target tissues via CN V ( trigeminal ) branches ( ophthalmic nerve CN V < sub > 1 </ sub >, maxillary nerve CN V < sub > 2 </ sub >, mandibular nerve CN V < sub > 3 </ sub >).

Species of the Corydoradinae are of small size ( maximum about in standard length ) and are easily distinguished from other callichthyids by their deep bodies and short maxillary barbels.

The Thymallus species are distinguished from other members of the salmon family by their larger scales, their small mouths with teeth on the maxillary bone, and most striking of all, their showy, sail-like dorsal fins.

They are so called for their large, saber-like maxillary canine teeth, which extended from their mouths even when it was closed.

It contains some of the extinct predators commonly known as " saber-toothed cats ", including the famed genus Smilodon as well as other cats with only minor increases in the size and length of their maxillary canines.

Due to maxillary hypoplasia, Crouzon patients generally have a considerable permanent underbite and subsequently cannot chew using their incisors.

Its sensory root is derived from two sphenopalatine branches of the maxillary nerve ; their fibers, for the most part, pass directly into the palatine nerves ; a few, however, enter the ganglion, constituting its sensory root.

Kennedy Class I RPDs are fabricated for people who are missing some or all of their posterior teeth on both sides ( left and right ) in a single arch ( either mandibular or maxillary ), and there are no teeth posterior to the edentulous area.

Procellariiformes also have between seven and nine distinct horny plates for their bill, and Petrels have one of these plates that form the hooked portion of their upper bill called their maxillary unguis.

For the mandibular arch, this function is provided by the gingiva ( gums ) and the buccal shelf ( region extending laterally ( beside ) from the posterior ( back ) ridges ), whereas in the maxillary arch, the palate joins in to help support the denture.

The pagoda Ahkyaib-daw, meaning maxillary bone, is believed to be built on a foundation encasing a piece of Buddha ’ s maxillary bone hence its name.

Lingually, the surface of the tooth is much more smooth compared to the very pronounced surface of the maxillary canine, and the cingulum is noted as less developed.

Antrochoanal polyps arise from the maxillary sinuses and are the much less common, ethmoidal polyps arise from the ethmoidal sinuses.

The quadrate and the maxillary and palatopterygoid arches are more or less movable to allow for the distension required by the passage of prey, often much exceeding the size of the mouth.

A large hole may be present between the frontal bones and the basisphenoid ( Psammophis, Coelopeltis ); the maxillary may be much abbreviated and movable vertically, as in the Viperidae ; the pterygoids may taper and converge posteriorly, without any connection with the quadrate, as in the Amblycephalidae ; the supratemporal may be much reduced, and wedged in between the adjacent bones of the cranium ; the quadrate may be short or extremely large ; the prefrontals may join in a median suture in front of the frontals ; the dentary may be freely movable, and detached from the articular posteriorly.

The deviation from the normal type is much greater still when we consider the degraded wormlike members of the families Typhlopidae and Glauconiidae, in which the skull is very compact and the maxillary much reduced.