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13 Cards in this Set
- Front
- Back
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Frontalis?
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Elevates eyebrows, used for frowning
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Orbicularis Oculi
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Forms a sphincter around the eye, has three parts, it closes the eye and is involved in lacrimation
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Orbicularis Oris
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Forms a sphincter around the mouth, purses lips, used for whistling and sucking,.
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Mentalis
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Elevates skin over chin
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Buccinator
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Muscle of the cheek, used for whistleing, sucking and mastication.
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Zygomaticus Major
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Involved in smiling and laughing
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Platysma
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sheet like muscle which coversneck and lower face. Has an embryological role related to facial nerve.
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motor Branches of Facial Nerve (CNVII) after passing parotid gland.
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Temporal, Zygomatic, Buccal, Mandibular, Cervical
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Facial nerve passes out of skull through
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stylomastoid foramen
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the facial nerve emerges
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between the pons and medulla
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before leaving the skull it passes through where
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internal acoustic meatus
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In the temporal bone the nerve splits into three branches
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greater superficial petrosal nerve (lacrimation), branch to stapedius (involved in decreasing amplitude of sounds from the tympanic membrane), chorda tympani (taste to ant 2/3)
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Clinical Assessment of facial nerve
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asymmetry during voluntary and involuntary movement, any weakness. ask person to smile, raise eyebrows, purse lips, blow out cheeks, screw up eyes. otoscopy. examine parotid gland.
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