Term
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Definition
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Term
| motor cell body of origin: |
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Definition
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Term
| sensory cell body of origin: |
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Definition
| geniculate ganglion--located in the bend of facial canal in temporal bone posterior to middle ear |
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Term
| sensory peripheral processes: |
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Definition
| innervate portions of external ear, taste receptors in anterior 2/3 of tongue |
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Term
| sensory central processes: |
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Definition
| terminate in nucleus solitarius (taste), sensory trigeminal nucleus (external ear) in the brainstem |
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Term
| parasympathetic cell body of origin: |
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Definition
| 1st cell body is superior salivary nucleus that innervates 5 glands |
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Term
| parasympathetic innervation to: |
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Definition
| lacrimal, submandibular, sublingual, nasal mucous, oral mucous |
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Term
| enters/leaves cranial cavity through: |
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Definition
| internal auditory meatus, continuous with the facial canal posterior to middle ear (tympanic cavity) |
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Term
| in facial canal splits into: |
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Definition
1. greater petrosal n. (at geniculate)
2. chorda tympani (distal to geniculate)
3. somatomotor and somatosensory (external ear) at the stylomastoid foramen |
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