buccinator

(redirected from buccinators)
Also found in: Dictionary.
Related to buccinators: masseter, Orbicularis oris, Buccinator nerve

buc·ci·na·tor (mus·cle)

[TA]
facial muscle of cheek; origin, posterior portion of alveolar portion of maxilla and mandible and pterygomandibular raphe; insertion, angle of mouth; also become interspersed with more horizontal portions of the orbicularis oris; action, flattens cheek, retracts angle of mouth; plays an important role in mastication, working with tongue and orbicularis oris muscle to keep food between teeth; when it is paralyzed, as in Bell palsy, food accumulates in the oral vestibule; nerve supply, facial.

buccinator

(bŭk′sĭ-nā′tər)
n.
The thin, flat muscle forming the wall of the cheek.

buccinator

[buk′sinā′tər]
Etymology: L, buccina, trumpet
the main muscle of the cheek, one of the 12 muscles of the mouth. It is pierced by the duct of the parotid gland opposite the second molar tooth. The buccinator, innervated by buccal branches of the facial nerve, compresses the cheek, acting as an important accessory muscle of mastication by holding food under the teeth.
enlarge picture
Buccinator

buccinator

Latin: trumpeter; A muscle of the cheek.

Action
Retracts angle of mandibula, compresses cheek.
 
Nerve
Buccal branch of facial.

Origin
Buccinator ridge of mandible, alveolar process of maxilla, pterygomandibular ligament.
 
Insertion
Orbicularis oris at angle of jaw.

buc·ci·na·tor mus·cle

(bŭk'si-nā'tŏr mŭs'ĕl)
Origin, posterior portion of alveolar portion of maxilla and mandible and pterygomandibular raphe; insertion, orbicularis oris at angle of mouth; action, flattens cheek, retracts angle of mouth; nerve supply, facial. Plays an important role in mastication, working with tongue to keep food between teeth; when it is paralyzed, food accumulates in the oral vestibule.
Synonym(s): musculus buccinator [TA] .
References in periodicals archive ?
Resonance is further altered as the buccinators pull back on the corners of the lips, forming a wide lateral opening.
Now sing an [i] vowel in your middle range with your buccinators contracted.
In addition to the fibers that run horizontally between the lips and the upper pharyngeal constrictors, the buccinators also have fibers that originate above the upper molars and run obliquely to attach below the lower molars.
The oral cavity constitutes a complex morphofunctional system in which the peri oral muscles mainly the orbicularis oris and buccinators exert inward force balanced by the outward forces exerted by tongue.
Contraction of buccinators is not affected by the presence or absence of dentures.
On buccal surfaces of the molar regions the influence of musculature was almost similar as buccinators are active during swallowing and speech.
18 Levator labii superioris, Zygomatic major and superior fibres of buccinators muscles under the nasolabial fold responsible for the production of full smile.