Lower-jaw sentence example
She tried to turn her face, but he held her lower jaw in a firm grip.
In the lower jaw there are also one or two small and early deciduous premolars; third premolars of both jaws formed on the same type as that of the rat-kangaroos, but relatively much larger; molars rudimentary, tubercular.
With the exception of the aberrant long-snouted phalanger, the members of the family Phalangeridae have the normal number of functional incisors, in addition to which there may be one or two rudimentary pairs in the lower jaw.
The lower jaw has no pocket on the outer side.
The lower jaw is slender, nearly straight, 2-3 and without a coronoid process or inflected angle.Advertisement
The broad molars are either bluntly tuberculated or transversely ridged; the outer side of the hind part of the lower jaw has a deep pocket; and the hind-limbs are generally very long, with the structure of the foot similar to that of the bandicoots.
The lower jaw is heavy; the cheekbones somewhat high, and the chin small and receding.
In view of these differences from the domesticated breed, and the resemblance of the skull or lower jaw to that of the extinct European species, it becomes practically impossible to regard the wild camels as the offspring of animals that have escaped from captivity.
In the lower jaw the incisors and canines are directed straight forwards, and are of small size and nearly similar form; the function of the canine being discharged by the first premolar, which is larger than the other teeth of the same series.
Tremors of the muscles more or less violent accompany the cold sensations, beginning with the muscles of the lower jaw (chattering of the teeth), and extending to the extremities and trunk.Advertisement
The lower jaw should be strongly protruding, the ears should be small and erect, the forehead deeply wrinkled with an indentation between the eyes, known as the "stop."
The lower jaw projects more or less beyond the upper, the mental barble is small, sometimes rudimentary, the vent is below the posterior half of the first dorsal fin, and there is a dark spot in the axil of the pectoral fin.
The tail is short or rudimentary, the incisors are short, and the outer surface of the lower jaw is marked by a distinct ridge.
The avicularium can move as a whole by means of special muscles, and its chitinous lower jaw m- ect.
The skull generally lacks a sagittal crest; and the condyle of the lower jaw is transversely elongated.Advertisement
Odontoid process of second vertebra semi-cylindrical; skull with a sagittal crest; and the condyle of the lower jaw rounded.
The hinder end of the lower jaw is provided with a deep descending flange.
Beavers are nearly allied to the squirrels (Sciuridae), agreeing in certain structural peculiarities of the lower jaw and skull.
It has also one premolar tooth less in the lower jaw.
The East African gerenuk, or Waller's gazelle (Lithocranius walleri), of which two races have been named, is a very remarkable ruminant, distinguished not only by its exceedingly elongated neck and limbs, but also by the peculiar hooked form of the very massive horns of the bucks, the dense structure and straight profile of the skull, and the extreme slenderness of the lower jaw.Advertisement
The condyle of the lower jaw is antero-posteriorly elongated.
The lower jaw is characterized by its abruptly narrowed and rounded front part supporting the pair of large in cisors, as well as by the small size of the coronoid process, and the great development of the lower hind, or angular, portion.
The digastric muscles also are remarkable for their well-defined central tendon, and in many species their anterior bellies are united between the two halves of the lower jaw.
The projection at the right-hand lower corner of the figure is the angular process of the lower jaw.
The second section, Castoroidea, of the present group includes only the family Castoridae, represented by the beavers, which are large aquatic rodents characterized by their massive skulls, devoid of post-orbital processes, with the angle of the lower jaw rounded, the molars rootless or semi-rooted, with re-entering enamel-folds, and one pair of premolars above and below.Advertisement
The spiny mice, Acornys (or Acanthomys), of Western Asia, Cyprus and Africa, take their name from the fur being almost entirely replaced by flattened spines, and are further distinguished by the rudimentary coronoid process of the lower jaw.
In the rodents now to be considered, the angular process of the lower jaw arises from the outer side of the sheath of the incisor.
The jugal is without an inferior angle, and extends forwards to the lachrymal; the palate is contracted in front and deeply emarginate behind; the incisors are short, and the molars divided by continuous folds into transverse plates; and the two halves of the lower jaw are welded together in front.
On the other hand, the American forms, which have one pair of large chisel-like incisors in the lower jaw, also possess a lower canine, and show no marked gap in front of the cheek-teeth, nor any indication of the characteristic rodent backwards movement of the lower jaw.
The most remarkable feature, however, consists in the front part of the lower jaw being bent downwards and bearing two tusk-like incisors also directed downwards and backwards.Advertisement
The members of the typical genus have the lower jaw so articulated to the upper, by means of a transverse condyle firmly locked into a long cavity of the cranium, that dislocation of the jaw is all but impossible, and this enables those creatures to maintain their hold with the utmost tenacity.
All the Crocodilia possess two pairs of musk-glands in the skin; one is situated on the inner side of the lower jaw.
In the lower jaw the first molar has 7 prisms, of which the 3 anterior are generally not fully separated from one another, the second 5 and the third 3.
There is generally no sagittal crest to the skull; and the condyle of the lower jaw is transversely elongated.
Upper canines are wanting; the cheek-teeth are small and low-crowned, with the third lobe of the last molar in the lower jaw minute.Advertisement
The pointed snout extends beyond the lower jaw.
In the lower jaw the three incisors are long, spatulate and horizontal, with the outer one the smallest.
A lower jaw from the Pleistocene deposits of that continent has, however, been referred to the Old World Camelus.
In the Oreodontinae or typical section of the family, which includes several genera nearly allied to Oreodon, the skull is shorter and higher than in the camels, with a swollen brain-case, a preorbital glandpit, the condyle of the lower jaw transversely elongated, the tympanic bulla hollow, and the orbit surrounded by bone.
If the crocodile moves its upper, not its lower, jaw, we may not say that all animals move the lower jaw.Advertisement
Corresponding to these in the lower jaw is but one tooth on each side, which is of great size, directed horizontally forwards, narrow, lanceolate and pointed with sharp edges.
Owing to the slight union of the two halves of the lower jaw in front in many species the two lower incisors work together like the blades of a pair of scissors.
The last, not fully developed, is nearly concealed by the ascending part of the lower jaw.
The skull has a remarkably narrow and pointed muzzle and much inflated auditory bullae; while the two halves of the lower jaw are firmly welded together at their junction, thus effectually preventing the scissor-like action of the lower incisors distinctive of Macropus and its immediate allies.
The tympanum itself has been regarded as representing one of the elements - probably the supra-angular - of the compound reptilian lower jaw.Advertisement
In the herbivorous modification, as seen in three distinct phases in the horse, the kangaroo, and in ruminants, the incisors are generally well developed in one or both jaws, and have a nipping action, either against one another or against a toothless hard pad in the upper jaw; while the canines are usually small or absent, at least in the upper jaw, but in the lower jaw may be approximated and assimilated to the incisors.
The lower jaw is large, especially the region of the angle, which is expanded and flattened, giving great surface for the attachment of the masseter muscle.
The curious horned frog of the Solomon Islands, Ceratobatrachus guentheri, which can hardly be separated from the Ranidae, has teeth in the lower jaw in both sexes, whilst a few forms, such as Dendrobates and Cardioglossa, which on this account have been placed in a distinct family, have no teeth at all, as in toads.
In the lower jaw of most of the Ecaudata the symphysial cartilages ossify separately from the dentary bones, forming the so-called mento-meckelian bones; but these symphysial bones, so distinct in the frog, are less so in the Hylidae and Bufonidae, almost indistinguishable in the Pelobatidae and Discoglossidae, whilst in the Aglossa they do not exist any more than in the other orders of batrachians.
The lower jaw of the haddock is slightly shorter than the upper jaw and the fish has a small single barbel.Advertisement
They had small eyebrow ridges and their lower jaw ended in a prominent chin.
The joint between the skull and the lower jaw is formed by a mandibular condyle.
This is the lower jaw of a cave hyena.
The animal has a protruding lower jaw with small blunt teeth.
The upper jaw is called the maxilla; the lower jaw is called a mandible.
In the skull there are always vacuities, or unossified spaces in the bones of the palate, while the "angle," or lower hind extremity of each half of the lower jaw is strongly bent inwards so as to form a kind of shelf, and the alisphenoid bone takes a share in the formation of the tympanum, or auditory bladder, or bulla.
From the North American grey foxes, constituting the genus or subgenus Urocyon, the true foxes are distinguished by the absence of a crest of erectile long hairs along the middle line of the upper surface of the tail, and also of a projection (subangular process) to the postero-inferior angle of the lower jaw.
The American grey fox, or Virginian fox, is now generally ranged as a distinct genus (or a subgenus of Canis) under the name of Urocyon cinereo-argentatus, on account of being distinguished, as already mentioned, by the presence of a ridge of long erectile hairs along the upper surface of the tail and of a projection to the postero-inferior angle of the lower jaw.
The masseteric ridge of the lower jaw is obsolete, the palate broad, the incisors long and the molars semi-rooted, with external and internal enamel-folds (see Agouti).
No importance can be attached to the presence of horns as an indication of affinity between Arsinoitherium and the Amblypoda; and there are important differences in the structure of the skulls of the two, notably in the external auditory meatus, the occiput, the premaxill.ae, the palatal foramina and the lower jaw.
The count's face was white and he could not control the feverish twitching of his lower jaw.
The lower jaw of an old Frenchman with a thick mustache trembled as he untied the ropes.
A paper has come from the Tsar!' so they began looking for him," here Karataev's lower jaw trembled, "but God had already forgiven him--he was dead!
It holds back the upper jaw while the lower jaw is still growing until the two are spaced evenly and correctly.
The mouthpiece extends the lower jaw forward and holds down the tongue.
This device keeps the lower jaw in place while keeping teeth together.
Adjustable PM Positioner keeps the lower jaw forward, opening the airway passage.
Mouthpieces are available to move the lower jaw or tongue forward, to open up this area.
Dental appliances for snoring work to bring the tongue and lower jaw forward, as well as supporting the tissues of the soft palate that may be sagging into the throat.
According to the product website, the My Snoring Solution is based on supporting the lower jaw.
By keeping the lower jaw in place, the airway space is increased, reducing the amount of soft tissue vibration and thus reducing, if not eliminating, the snoring.
Oral devices and lower jaw positions can be excellent snoring cures.
They work by bringing the lower jaw forward and preventing the collapse of soft tissues, allowing the airway to remain unobstructed throughout sleep.
He offers the SomnoMed mandibular advancement splint (MAS) which treats mild and moderate sleep apnea by moving the lower jaw forward during sleep.Dr.
Many of these devices work to reposition the lower jaw.
A physician uses a small screw to move the lower jaw slightly forward, which helps the tongue stay in place.
The oral devices typically position the lower jaw forward to prevent the soft tissues in the throat from falling back into the breathing passage.
The teeth of the upper jaw slightly overlap those of the lower jaw.
Removable bionators hold the lower jaw forward and guide tooth eruption while helping the upper and lower jaws to grow proportionately.
Headgear and Herbst appliances can significantly reduce protrusion of the four top incisors and enable the growing lower jaw to catch up with the upper jaw, eliminating swallowing problems.
The lower jaw (mandible) may be dislocated by force.
When an osteosarcoma develops in the jawbone, the entire lower jaw is removed.
With a perfect bite (occlusion), the teeth of the upper jaw slightly overlap those of the lower jaw.
A child has an inherited disorder that affects the teeth or jaws, such as a protruding or recessed lower jaw.
Other forms of osteopetrosis progress at a more rapid pace and destroy bone structure, which can involve bones throughout the body, although the lower jaw is never affected.
In some cases, an infant with a cleft palate may also have a small lower jaw and have difficulty breathing.
A small, light brown colored spot on the lower jaw is not likely to be very noticeable, while a dark brown spot directly on the cheek will be much more obvious.
In the winter coat the hair is long and pendent, elongated into a short beard on the sides of the lower jaw behind the chin; and it is also longer than elsewhere on the neck and the chest; at the base of the long hair is a thick growth of short and woolly under-fur.
On the other hand, it is noteworthy that this marsupial retains in its lower jaw the so-called mylo-hyoid groove, which is found in the aforesaid Jurassic mammals.