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The buccinator muscle, also known as the muscle of the cheek, is a square, bilateral muscle situated in the mobile and adaptable cheek area. It is responsible for compressing the cheeks and expelling air between the lips, such as when blowing a trumpet. The muscle is also involved in mastication, holding food in the mouth while chewing, and playing a role in various facial expressions, such as whistling, blowing kisses, and sucking on a lemon. The buccinator muscle contributes to the appearance of lines, wrinkles, and sunken cheeks, and its treatment can help to plump up the cheek area, making individuals appear fresher and younger.
| Characteristics | Values |
|---|---|
| Name | Buccinator muscle |
| Shape | Square, bilateral, thin, quadrilateral |
| Location | Deep within the facial muscles, between the maxilla and mandible |
| Function | Compresses the cheek, expels air between the lips, holds food in the mouth, maintains cheek tension, prevents mucosal injury, stabilises dentures, regulates parotid secretion, aids swallowing, involved in facial expressions |
| Involvement in facial expressions | Whistling, blowing a kiss, sucking a lemon, suckling, smiling |
| Blood supply | Buccal artery, branches of the facial artery |
| Nerve supply | Buccal branches of the facial nerve |
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What You'll Learn
The buccinator muscle is responsible for compressing the cheeks
The buccinator muscle is also involved in various facial expressions, such as whistling, blowing a kiss, or sucking on a lemon. It is also known as the "trumpeter's muscle" because it puffs out the cheeks, similar to blowing a trumpet. The muscle contracts gradually while closing the mouth and relaxes when the mouth opens. These actions maintain cheek tension, preventing buccal mucosal injury. The buccinator also helps retain and stabilize complete dentures.
The buccinator muscle fibres originate from three areas, giving rise to three muscular bundles. Two of these bundles have a bony origin. The maxillary bundle arises from the buccal portion of the maxilla's alveolar process, while the mandibular bundle originates from the buccal portion of the mandible's alveolar process. The longitudinal bundle emerges from the pterygomandibular raphe, a tendinous band behind the third molar. The fibres of all three bundles run anteriorly and descend through the modiolus, forming the musculature of the cheek.
The buccinator is the main muscle of the cheek, providing it with structure and tightness. It compresses the cheek against the molar teeth, which is important to keep the food bolus central in the oral cavity and to prevent the cheeks from being bitten during mastication. Additionally, the buccinator muscle plays a role in swallowing, as it generates a peristaltic wave-like contraction during the oral phase of deglutition.
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It is involved in mastication and holding food in the mouth
The buccinator muscle is a square, bilateral muscle situated in the mobile and adaptable cheek area. It is the main muscle of the cheek, providing it with structure and tightness. The muscle is also remarkably elastic and can be stretched easily to conform to defects with a complex shape. The buccinator muscle compresses the cheeks and expels air between the lips, such as in blowing a trumpet.
The buccinator muscle is involved in mastication (chewing) and holding food in the mouth. It pulls back the angle of the mouth and flattens the cheek area, aiding in holding the cheek to the teeth during chewing. This action causes the muscle to keep food pushed back on the occlusal surface of the posterior teeth, assisting the muscles of mastication. It also presses food against the cheeks to keep food from accumulating in the mouth.
The muscle contracts gradually while closing the mouth and relaxes when the mouth opens. These actions maintain cheek tension, preventing buccal mucosal injury. The buccinator helps retain and stabilize complete dentures. It is activated during mandibular movements like protrusion and retrusion, aiding in completing these actions. The buccinator also plays a role in swallowing, generating a peristaltic wave-like contraction during the oral phase of deglutition.
The buccinator muscle is not considered an expressive muscle, but because it underlies several other muscles, it is involved in several facial expressions. For example, the act of compressing the cheeks can be the precursor to whistling, blowing a kiss, or sucking on a lemon.
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It is also involved in facial expressions
The buccinator muscle is responsible for compressing the cheeks. It is a square, bilateral muscle situated in the mobile and adaptable cheek area. It is also referred to as the "trumpeter's muscle" as it is used for blowing trumpets. The muscle contracts gradually while closing the mouth and relaxes when the mouth opens. This action maintains cheek tension and prevents injury to the buccal mucosa.
The buccinator muscle is also involved in facial expressions. It is not considered an expressive muscle, but because it intermingles with many other muscles, it contributes to several facial expressions. Compressing the cheeks can be the precursor to facial expressions like whistling, blowing a kiss, or sucking on a lemon. It is also involved in smiling, as a dimple can form in the buccinator muscle when a person is smiling.
The buccinator muscle is also important in maintaining the appearance of the cheeks. When the buccinator muscle is treated, it plumps up the cheek area, making the patient look younger and fresher. It also helps to prevent sunken cheeks, which can make a person look unwell.
The buccinator muscle is involved in mastication, or chewing. It compresses the cheek against the molar teeth, preventing the cheeks from being bitten during chewing. This action also helps to keep food centralised in the mouth, aiding in the chewing process.
The buccinator muscle is a facial muscle that shapes the structure of the cheek, filling the space between the maxilla and mandible. It is comprised of three parts: superior, inferior, and posterior. The muscle fibres originate from three areas, giving rise to three muscular bundles, two of which have a bony origin.
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It is the main muscle of the cheek
The buccinator muscle is the main muscle of the cheek. It is a thin, quadrilateral muscle that occupies the space between the maxilla and the mandible at the side of the face. The muscle is responsible for several functions, including compressing the cheeks and playing a role in facial expressions.
The buccinator muscle is involved in mastication, or the process of chewing. It compresses the cheek against the molar teeth, helping to hold food in the mouth and preventing the cheeks from being bitten during chewing. This action also keeps the bolus of food centralised in the oral cavity, aiding in the swallowing process. Additionally, the buccinator muscle contributes to facial expressions such as whistling, blowing kisses, and sucking on a lemon. It is also essential in playing wind instruments, as it expels air from the distended cheeks.
The muscle fibres of the buccinator originate from three areas, giving rise to three muscular bundles. Two of these bundles have a bony origin. The maxillary bundle arises from the buccal portion of the maxilla's alveolar process, while the mandibular bundle originates from the buccal portion of the mandible's alveolar process. The third bundle, known as the longitudinal bundle, emerges from the pterygomandibular raphe. These fibres blend with the orbicularis oris muscle fibres, contributing to the peripheral part of this muscle.
The buccinator muscle is not typically considered an expressive muscle, as it is primarily used for chewing. However, because it intermingles with various other muscles, it does play a role in certain facial expressions. Treating the buccinator muscle through needling, for example, can help to plump up the cheek area, giving a fresher and younger appearance. This treatment is especially beneficial for older individuals who struggle to keep food in their mouths while eating.
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It is a square, bilateral muscle
The buccinator muscle is a square, bilateral muscle situated in the mobile and adaptable cheek area. It is also referred to as the "muscle of the cheek" in English or the "trumpeter's muscle", as it is involved in blowing air between the lips, such as when blowing a trumpet. The buccinator is one of the first muscles to be activated by sucking during infancy. It is also involved in various facial expressions, such as whistling, blowing a kiss, or sucking on a lemon.
The buccinator muscle is responsible for compressing the cheeks and expelling air between the lips. It is located deep within the facial muscles and contributes to the appearance of lines, wrinkles, and sunken cheeks if not properly treated. The muscle contracts gradually while closing the mouth and relaxes when the mouth opens. These actions maintain cheek tension and prevent buccal mucosal injury. The buccinator also helps to regulate parotid secretion and plays a role in the oral and pharyngeal phases of swallowing.
The buccinator muscle fibres originate from three areas, giving rise to three muscular bundles. Two of these bundles have a bony origin. The maxillary bundle arises from the buccal portion of the maxilla's alveolar process, while the mandibular bundle originates from the buccal portion of the mandible's alveolar process. The longitudinal bundle emerges from the pterygomandibular raphe, a tendinous band behind the third molar. The fibres of all three bundles run anteriorly and descend through the modiolus, forming the musculature of the cheek.
The buccinator muscle shapes the muscular structure of the cheek, filling the space between the maxilla and mandible. It is comprised of three parts: superior, inferior, and posterior. The superior part arises from the outer surface of the alveolar process of the maxilla, while the inferior part arises from the alveolar part of the mandible. The posterior part originates from the anterior margin of the pterygomandibular raphe. All three parts of the buccinator coincide towards the angle of the mouth and insert onto the modiolus, mixing with other muscles of the upper lip.
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Frequently asked questions
The buccinator muscle is a square, bilateral muscle situated in the mobile and adaptable cheek area. It forms the anterior part of the cheek or the lateral wall of the oral cavity.
The buccinator muscle compresses the cheeks and expels air between the lips, such as when blowing a trumpet. It is also involved in mastication and holding food in the mouth while chewing. Additionally, it plays a role in various facial expressions, such as whistling, blowing a kiss, or sucking on a lemon.
If the buccinator muscle is not properly treated, it can contribute to the appearance of lines, wrinkles, and sunken cheeks.
Treating the buccinator muscle develops the cheek, making the patient look fresher and younger. It also helps older people keep food in their mouths while eating.
