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  2. Depressor anguli oris muscle - Wikipedia

    en.wikipedia.org/wiki/Depressor_anguli_oris_muscle

    The depressor anguli oris arises from the lateral surface of the mandible. [1] Its fibers then converge. It is inserted by a narrow fasciculus into the angle of the mouth. [1] At its origin, it is continuous with the platysma muscle, and at its insertion with the orbicularis oris muscle and risorius muscle.

  3. Marginal mandibular branch of the facial nerve - Wikipedia

    en.wikipedia.org/wiki/Marginal_mandibular_branch...

    It passes anterior-ward deep to the platysma and depressor anguli oris muscles. It provides motor innervation to muscles of the lower lip and chin: the depressor labii inferioris muscle, depressor anguli oris muscle, and mentalis muscle. [1] It communicates with the mental branch of the inferior alveolar nerve. [citation needed]

  4. Facial muscles - Wikipedia

    en.wikipedia.org/wiki/Facial_muscles

    Levator labii superioris alaeque nasi muscle; Depressor labii inferioris muscle; Levator anguli oris; Buccinator muscle; Mentalis; The platysma is supplied by the facial nerve. Although it is mostly in the neck and can be grouped with the neck muscles by location, it can be considered a muscle of facial expression due to its common nerve supply.

  5. List of depressors of the human body - Wikipedia

    en.wikipedia.org/wiki/List_of_depressors_of_the...

    Outline of human anatomy; ... mandible. Lateral pterygoid muscle; lower lip. Depressor labii inferioris muscle; angle of mouth. Depressor anguli oris muscle;

  6. Buccal branches of the facial nerve - Wikipedia

    en.wikipedia.org/wiki/Buccal_branches_of_the...

    Muscle Action Risorius: Smirk Buccinator: Aids chewing by holding cheeks flat Levator labii superioris: Elevates upper lip Levator labii superioris alaeque nasi muscle: Snarl Levator anguli oris: Soft smile Nasalis: Flare nostrils Orbicularis oris muscle: Purse Lips Depressor septi nasi: Depresses nasal septum Procerus: Moves skin of forehead

  7. Depressor labii inferioris muscle - Wikipedia

    en.wikipedia.org/wiki/Depressor_labii_inferioris...

    The depressor labii inferioris muscle helps to depress and everts the lower lip. [1] It is the most important of the muscles of the lower lip for this function. [1] It is an antagonist of the orbicularis oris muscle. [1] It is needed to expose the mandibular (lower) teeth during smiling. [1]

  8. Modiolus (face) - Wikipedia

    en.wikipedia.org/wiki/Modiolus_(face)

    There are no precise histological boundaries because the modiolus is an irregular zone where dense, compact, interlacing tissue grades into the stems of individually recognizable muscles. It is contributed to by at least nine muscles: orbicularis oris , buccinator , levator anguli oris , depressor anguli oris , zygomaticus major , zygomaticus ...

  9. Mental nerve - Wikipedia

    en.wikipedia.org/wiki/Mental_nerve

    This is a branch of the mandibular nerve (CN V 3), itself a branch of the trigeminal nerve (CN V). [1] It emerges from the mental foramen in the mandible. [2] It divides into three branches beneath the depressor anguli oris muscle. One branch descends to the skin of the chin. Two branches ascend to the skin and mucous membrane of the lower lip.