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6 Cards in this Set
- Front
- Back
CN VII - Name - Type - Origin |
- Facial - Mixed - Originates: Pons |
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CN VII -Motor Innervation |
- muscles of facial expression - platysma (pout) - stylohyoid (elevate hyoid / tongue) - post belly of digastric (e hyoid elevation) - stapedius (stabalizes stapes) - submandibular & sublingual glands |
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CN VII - Sensory Innervation |
Taste - Ant 2/3 of tongue - Floor of mouth - Soft/Hard Palate Touch - external ear - auditory meatus |
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CN VII - Functions |
- Movements of facial expression - Hyolaryngeal elevation - Saliva/tear production - Taste ant. 2/3 of tongue |
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CN VII - Damage |
- Motor ~ lower face droop ~ smooth forehead ~ ability to -wrinkle forehead -close eyes tightly -spread lips (smile) -keep lips compressed against resistance - Sensory ~ loss of taste (ant 2/3) |
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CN VII - Damage (UMN vs LMN) |
- Unilateral ~ UMN = Contralateral lower face weakness ~ LMN = Ipsilateral facial weakness -Bilateral ~ UMN = spastic paralysis (bilateral) ~ LMN = flaccid paralysis (bilateral) |