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Anatomy
Muscles of the Face
Question | Answer |
---|---|
Occipitofrontalis | draws scalp posteriorly & raises eyebrows as in an expression of surprise |
Anterior Auricular m. | pulls pinna (external ear) anteriorly |
Collective name of group including occipitofrontalis & its galea aponeurotica & temporoparietalis m. | Muscle Epicranius |
Temporoparietalis m | acts in helping to keep the scalp tight |
Posterior Auricular m | pulls pinna (external ear) posteriorly |
Superior Auricular m | pulls pinna superiorly |
Name the sphincter muscle consisting of pars orbitalis, pars palpebralis, pars lacrimalis | Orbicularis Oculi |
Corrugator Supercilii | draws eyebrows downward & medially as in frowning |
Pars orbitalis | gently closes eye |
Pars palpebralis | closes eyelids tightl |
Pars lacrimalis | compresses lacrimal sac & draws lacrimal puncta (openings leading to sac) medially |
Procerus | draws medial angle of eyebrows downward & wrinkles skin on bridge of nose |
Muscle consisting of pars alaris and pars transversa | Nasalis |
Depressor Septi Nasi | controversial; constricts the nostril (according to Gray's Anatomy, American Ed. - opposite action to that listed in Moore) |
Levator Labii Superioris: | raises upper lip |
Levator Labii Superioris Alaeque Nasi | raises upper lip and dilates naris (nostril) |
Zygomaticus Minor | moves upper lip upward & outward |
Zygomaticus Major | the "laughing muscle", raises corner of mouth as in laughing |
Levator Anguli Oris | raises angle (corner) of the mouth as in disdain |
Risorius | "smile (grin) muscle"; draws corner of mouth laterally as in smiling |
Depressor Anguli Oris | depresses angle (corner) of mouth |
Buccinator | compresses cheeks against teeth during mastication ! ! (chewing) and also during blowing (e.g., while blowing a trumpet) |
Depressor Labii Inferioris | depresses lower lip |
Mentalis | protrudes lower lip & wrinkles skin on chin |
Sphincter muscle consisting of pars marginalis pars labialis | Orbicularis Oris (Kissing Muscle) |
Platysma Muscle | retracts & depresses angle of mouth as in horror, producing wrinkles on skin of neck; also helps in depressing mandible |