THRC.13 Flashcards
CN-VII
Facial nerve
CN-IX
Glossopharyngeal nerve
What is shown?
What do the colours represent?
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Primary branches of the facial (CN-VII) (eq)
- Blue = Sensory
- Red = Motor
- Green = Parasympathetic
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Internal acoustic meatus
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Canalis facialis
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Rostral auricular branch
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Zygomatic branch
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Nucleus of the abducent nerve (VI)
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Intermediate part (VII)
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Vestibulocochlear nerve (VIII)
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Stapedial nerve
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Internal auricular nerve
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Auricular branch of the vagus nerve (X)
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Caudal auricular nerve
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Digastric branch
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Auriculopalpebral nerve
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Cervical branch
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Dorsal buccal branch
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Ventral buccal branch
1
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Geniculate ganglion
2
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Pterygopalatine ganglion + major petrosal nerve
3
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Chorda tympani
4
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Mandibular ganglion + lingual nerve (V3)
Where are the nuclei of the facial nerve (CN-VII) located?
Medulla oblongata
- Motor
- Parasympathetic
Geniculate ganglion
- Sensory
Give the path of the facial nerve
- Internal acoustic meatus
- Facial canal
- Geniculate ganglion
Give the branches of the facial nerve
- Stapedial nerve
- Major petrosal nerve
- Chorda tympani
- Internal auricular nerve
- Caudal auricular nerve
- Digastric branch
- Auriculopalpebral nerve
- Cervical branch
- Buccal branch
- Dorsal
- Ventral
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Glossopharyngeal nerve (CN-IX)
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Proximal ganglion
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Distal ganglion
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Minor petrosal nerve
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Otic ganglion
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Pharyngeal branch
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Lingual branch
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Hypoglossal nerve
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Carotid sinus branch
Where does the glossopharyngeal nerve originate?
- Nucleus ambinguus (motor)
- Parasympathetic nucleus of glossopharyngeal nerve (Para)
Function of glossopharyngeal nerve
- Stylopharyngeal muscle (Motor)
- Carotid body (glomus caroticum) (Sensory)
- Caudal tongue (Sensory)
- Parotid + buccal glands (Parasympathetic)
Glossopharyngeal nerve receives sympathetic fibres from…
Cranial cervical ganglion