The Buccinator muscle is a bilateral square-shaped muscle constituting the mobile as well as the adaptable cheek area1 Couper and Myot coined the term buccinator in the year 16942 This muscle is sometimes referred to as an accessory muscle of mastication due to its role in compressing the cheeks inwards against molars thus aiding in chewing and swallowing3. Plays an important role in mastication.
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The inferior part arises from the buccinator ridge of mandible opposite to the three mandibular molar teeth.
M. buccinator origin. Arises from the mandible pterygomandibular raphe and alveola. The origin of the buccinator muscle is seen on the right side black arrowhead. Superior nuchal line of the temporalis bone.
Tap card to see definition. Occipital artery a branch of the external carotid artery. Click again to see term.
Buccinator Muscle Origin and Insertion This section will discuss the buccinator origin and insertions. Attaches to the angle of the mouth. Origin posterior portion of alveolar portion of maxilla and mandible and pterygomandibular raphe.
Although there is a maxillary origin as well as a mandibular origin of the buccinator in humans the muscle that we found in the cat displayed only a mandibular origin. Skin of the upper and lower lip. Alveolar process of maxilla and mandible.
Blends with muscles at angle of mouth Innervation. The buccinator muscle is served by the buccal branch of cranial nerve VII also known as the facial nerve. As a result the infection typically spreads easily to this region where these abscesses tend to be chronic.
Click card to see definition. For example during chewing the orbicularis oris and buccinator muscles act to retain the food inside the mouth while the masseter and temporalis muscles move the mandible to chew the food. Buccal and zgyomatic branches of facial nerve CN VII Blood supply.
The origin of the infection is usually odontogenic from pericoronitis in the mandibular third molar especially when the apices of the tooth lies very close to or within the space. Origin Posterior part of Lateral aspect of zygomatic bone. Facial nerve CN VII Comment.
The parotid duct ran laterally and dorsally to this muscle and penetrated the buccal membrane apart from. Compression of cheek eg inflating a balloon. Elevates and everts angle of mouth.
If anteroposterior or lateral and medial adjustment of the mandible is required the pterygoid muscles provide that movement. Contraction of this muscle presses the cheek against the molar. Action flattens cheek retracts angle of mouth.
Modiolus anguli oris above the M. Insertion angle of mouth. Orbicularis oris in the upper and lower lip.
Tap again to see term. Modiolus blends with muscles of upper lip. As previously mentioned the buccinator muscles location is in the cheeks of the human face.
Also become interspersed with more horizontal portions of the orbicularis oris. The posterior extent of the medial buccal fat pad is limited by the lateral pterygoid muscle T and the overlying fascia. Click again to see term.
Tap again to see term. Playing a wind musical instrument Origin. It consists of a superficial and a deep part both with their origin at the zygomatic arc.
Origin Jugum alveolare of the upper and the lower canine. Posterior portion of the galea aponeurotica. The buccinator muscle is the major facial.
Superior labial artery facial artery. TA facial muscle of cheek. Additionally some fibers of the buccinator arise from the.
Pterygomandibular raphe Maxilla lateral aspect Mandible lateral body Insertion. The masseter muscle and the medial projection M of buccal fat between the masseter muscle and the maxilla. The masseter muscle is a thick rectangular muscle of mastication.
Arises from the mandible pterygomandibular raphe and alveola. Alveolaris maxillae in the range of the molars Crista buccinatoria in the range of the mandibular molars. The posterior part of the buccinator originates from the anterior margin of pterygomandibular raphe a tendinous band behind the third molar spanning from the pterygoid hamulus to the posterior end of the mylohyoid line.
A raphe is a seam where two structures.
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