mandible

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mandible

 [man´dĭ-b'l]
the horseshoe-shaped bone forming the lower jaw. adj., adj mandib´ular. It consists of a central portion, which forms the chin and supports the lower teeth, and two perpendicular portions, or rami, which point upward from the back of the chin on either side and articulate with the temporal bones.

man·di·ble

(man'di-bŭl), [TA]
A U-shaped bone (in superior view), forming the lower jaw, articulating by its upturned extremities with the temporal bone on either side.

mandible

/man·di·ble/ (man´dĭ-b'l) the horseshoe-shaped bone forming the lower jaw, articulating with the skull at the temporomandibular joint.mandib´ular

mandible

(măn′də-bəl)
n.
1. The lower jaw of a vertebrate animal.
2. Either the upper or lower part of the beak in birds.
3. Any of various mouth organs of invertebrates used for seizing and biting food, especially either of a pair of such organs in insects and other arthropods.

man·dib′u·lar (-dĭb′yə-lər) adj.

mandible

[man′dibəl]
Etymology: L, mandere, to chew
a large U-shaped bone constituting the lower jaw. It contains the lower teeth and consists of a horizontal part, a body, and two perpendicular rami that join the body at almost right angles. The body of the mandible is curved, somewhat resembling a horseshoe, and has two surfaces and two borders. The superior border of the mandible contains sockets for the 16 lower teeth. The inferior border provides a groove for the facial artery. Compare maxilla. mandibular, adj.
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Mandible

mandible

The lower jaw bone. The joint where the mandible meets the upper jaw at the temporal bone is called the temporomandibular joint.

man·di·ble

(man'di-bĕl) [TA]
A U-shaped bone, forming the lower jaw, articulating by its upturned extremities with the temporal bone on either side.
Synonym(s): jaw bone, mandibula, submaxilla.
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LEFT LATERAL VIEW OF MANDIBLE

mandible

(man′dĭ-bĕl) [L. mandibula, lower jawbone]
The horseshoe-shaped bone forming the lower jaw.
See: illustrationmandibular (-dib′yŭ-lăr), adjective

mandible

The lower jaw bone. The head of the mandible, on either side, articulates with a hollow on the underside of the temporal bone, just in front of the ear. This is called the temporo-mandibular joint. The mandible is pulled upwards by powerful masticatory muscles. In dislocation of the mandible, the heads slip forward out of the hollows in the temporal bone and the mouth remains wide open until the dislocation is reduced by downward pressure on the back teeth.

mandible

that part of the mouthparts of an animal which does most of the crushing of food materials. In vertebrates, the term usually denotes the lower jaw. In insects and other arthropods, the mandibles are one of a pair of mouthparts used for crushing food (see Fig. 197 ).

Mandible

The medical term for the lower jaw. One type of oral appliance used to treat OSA pushes the mandible forward in order to ease breathing during sleep.

man·di·ble

(man'di-bĕl) [TA]
U-shaped bone (in superior view), forming lower jaw, articulating by its upturned extremities with temporal bone on either side.
Synonym(s): jaw bone, lower jaw, mandibulum, submaxilla.

mandible,

n the lower jawbone.
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The mandible.
mandible, inferior,
n the border of the lower edge of the mandible. Begins anterior to the insertion of the masseter muscle at the inferior surface of the angles of the mandible and is continuous anteriorly with the incisor region.
mandible, movements of,
mandible, posture of,
n the physiologic rest position, or the rest vertical relation of the mandible.

mandible

the horseshoe-shaped bone forming the lower jaw.
Consists of a central body, which forms the chin and supports the lower teeth, and two vertical or perpendicular rami, which point upward from the back of the chin on either side and articulate with the temporal bones by their condylar processes. The rami end as coronoid processes. In ruminants and carnivores the mandible is permanently divided into two halves by the mandibular symphysis, a joint that allows some rotation.
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Lateral view of the dog mandible. By permission from Aspinall V, O'Reilly M, Introduction to Veterinary Anatomy and Physiology, Butterworth Heinemann, 2004

swollen mandible
generally enlarged due to osteodystrophia in horses and pigs; localized enlargement in actinomycosis of jaw in cattle, bone neoplasm.
References in classic literature ?
Their forehead is very short and broad, with the nasal end turned up, and the upper lip much drawn back; their lower jaws project beyond the upper, and have a corresponding upward curve; hence their teeth are always exposed.
The tip of his tawny tail moved in spasmodic little jerks; his lower jaw hung low, exposing a red tongue and yellow fangs.
Raffles had made friends with the magnificent brute, while I took timid stock of his diamond studs, his jewelled watch-chain, his eighteen-carat bangle, and his six-inch lower jaw.
Its nose, or snout, depended nearly a foot below its lower jaw, much after the manner of a rudimentary trunk.
The youth trembled with horror, and his blood ran cold, yet he did not lose his courage; but, holding the iron spear upright in his hand, he brought it down with all his might right through the monster's lower jaw.
The moonlight glistened against his glossy green hide, sparkling the jewels of his heavy harness and the ornaments that weighted his four muscular arms, while the upcurving tusks that protruded from his lower jaw gleamed white and terrible.
Had his whole lower jaw shot away--died in the ambulance before they could get him to the receiving hospital.
It was long, whitish, and blotched with pimples, the nose flattened, and the lower jaw projecting, with a bristle of coarse whiskers round the chin.
The eyes were widely dilated and the lower jaw dropped in an expression of surprise and awe.
The shape, as well as the breadth and length of the ramus of the lower jaw, varies in a highly remarkable manner.
The other day I picked up the lower jaw of a hog, with white and sound teeth and tusks, which suggested that there was an animal health and vigor distinct from the spiritual.
Bradley Headstone knotted his brows, and squared his large lower jaw, and fixed his eyes on the ground with an air of determination that seemed unnecessary to the occasion, as he replied: 'And there is such a man.