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3 Cards in this Set
- Front
- Back
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As a group: Origin: Facial bones Insertion: Skin of face Nerve supply: Facial nerve (CNXIII) Action: Pulls skin of face to make facial expression |
Orbicularis Oculi Orbicularis Oris Zygomaticus major Buccinator Platysma |
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Origins: 1. O.Oc: Wall of orbit 2. O.Or: No bony origin, fibers of several muscles merge in to it 3. ZM: Zygomatic bone 4. BC: Maxilla and mandible 5.PT: Clavicle
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Insertions: 1. O.Oc: Fibres encircle the palpebral fissure 2. O.Or: Fibres encircle the mouth 3. ZM: Merges in to angle of mouth 4. BC: Merges in to orbicularis ori 5. PT: Passes mandible, and end by merging with orbicularis ori |
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ALL MUSCLES ARE SUPPLIED BY THE FACIAL NERVE |
1. O.Oc: Palpebral part (gently close eye), Orbital part (forcefully close eye) 2. O.Or: Gently close lips 3. ZM: Lift corner of mouth in smiling 4. BC: Compress cheek to move food medially 5. PT: Pulls skin of chest and neck up... and lower face down |
