Muscles of facial expression

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Flashcards by 0 9, updated more than 1 year ago
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Created by 0 9 about 4 years ago
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Flashcards on the Origin, Insertion, Innervation and Actions of the muscles of facial expression.
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Question Answer
Name the origin, insertion, innervation and action of the mentalis Origin: Anterior surface of the body of the mandible Insertion: Skin of the chin Innervation: Marginal mandibular branch of the facial nerve Action: Elevate and protrude the lower lip
Name the origin, insertion, innervation and action of the depressor labii inferioris Origin: Anterolateral surface of the body of the mandible Insertion: Skin of the lower lip Innervation: Marginal mandibular branch of the facial nerve Action: Depress the lower lips
Name the origin, insertion, innervation and action of the depressor anguli oris Origin: Anterolateral surface of the base of the mandible Insertion: Modiolus of the mouth Innervation: Marginal mandibular branch of the facial nerve Action: Depress the angle of the mouth
Name the origin, insertion, innervation and action of the platysma Origin: Subcutaneous tissue Insertion: Inferior border of the body of the mandible, Modiolus of the mouth, Skin of the lower lip Innervation: Cervical branch of the facial nerve
Name the origin, insertion, innervation and action of the risorius Origin: Parotid fascia Insertion: Modiolus of the mouth Innervation: Buccal branch of the facial nerve Action: Retract the angle of the mouth
Name the origin, insertion, innervation and action of the zygomaticus major Origin: Anterior surface of zygomatic bone Insertion: Modiolus of the mouth Innervation: Buccal branch of the facial nerve Action: Elevate the angle of the mouth laterally
Name the origin, insertion, innervation and action of the zygomaticus minor Origin: Anterior surface of zygomatic bone Insertion: Skin of the upper lip Innervation: Buccal branch of the facial nerve Action: Elevates the upper lip
Name the origin, insertion, innervation and action of the levator labii superioris Origin: Infraorbital margin of the maxilla Insertion: Skin of the upper lip Innervation: Buccal branch of the facial nerve Action: Elevates the upper lip
Name the origin, insertion, innervation and action of the levator labii superioris alaeque nasi Origin: Frontal process of the maxilla Insertion: Skin of the upper lip and alar carilage Innervation: Buccal branch of the facial nerve Action: Elevate the upper lip and wing of the nose
Name the origin, insertion, innervation and action of the procerus Origin: Fascia aponeurosis covering the nasal bone Insertion: Skin of the inferior forehead Innervation: Buccal branch of the facial nerve Action: Depression of medial end of eyebrows
Name the origin, insertion, innervation and action of the corrugator supercilii Origin: Supraorbital ridges of the frontal bone Insertion: Skin of the forehead Innervation: Temporal branch of the facial nerve Acion: Depress the eyebrows medially and inferiorly
Name the origin, insertion, innervation and action of the occipital belly of occipitofrontalis Origin: Superior nuchal line of the occipital bone Insertion: Epicranial aponeurosis Innervation: Posterior auricular branch of the facial nerve Action: Aids frontal belly with retraction of the scalp
Name the origin, insertion, innervation and action of the frontal belly of occipitofrontalis Origin: Epicranial aponeurosis Insertion: Orbicularis oris Innervation: Temporal branch of the facial nerve Action: Raise the eyebrows
Name the origin, insertion, innervation and action of the buccinator Origin: Alveolar processes of the mandible and maxilla Insertion: Modiolus of the mouth Innervation: Buccal branch of the facial nerve Action: Press the cheek against the molar teeth when chewing
Name the origin, insertion, innervation and action of the levator anguli oris Origin: Canine fossa of the maxilla Insertion: Modiolus of the mouth Innervation: Buccal branch of the facial nerve Action: Elevate the angle of the mouth
Name the origin, insertion, innervation and action of the orbicularis oris Origin: Median planes of maxilla/mandible Insertion: Skin of the lip Innervation: Buccal branch of the facial nerve Action: Close and Protrude the lips
Name the origin, insertion, innervation and action of the nasalis Origin: Insertion: Innervation: Buccal branch of the facial nerve Action: Flares nostrils and compresses bridge of nose
Name the part of the orbicularis oculi that gently closes the eyelids Palpebral part
Name the part of the orbicularis oculi that firmly closes the eyelids Orbital part
Name the part of the orbicularis oculi that compresses the lacrimal sac Lacrimal part
Two out of three of the parts of the orbicularis oculi are innervated by the temporal branch of the facial nerve. Which part is innervated by the zygomatic branch of the facial nerve? Lacrimal part
What is the origin and insertion of the orbicularis oculi? Origin: Medial orbital margin Insertion: Skin around the margin of the orbit (+ lateral palpebral raphe)
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