THRC.13 Flashcards
CN-VII
Facial nerve
CN-IX
Glossopharyngeal nerve
What is shown?
What do the colours represent?
Primary branches of the facial (CN-VII) (eq)
- Blue = Sensory
- Red = Motor
- Green = Parasympathetic
Internal acoustic meatus
Canalis facialis
Rostral auricular branch
Zygomatic branch
Nucleus of the abducent nerve (VI)
Intermediate part (VII)
Vestibulocochlear nerve (VIII)
Stapedial nerve
Internal auricular nerve
Auricular branch of the vagus nerve (X)
Caudal auricular nerve
Digastric branch
Auriculopalpebral nerve
Cervical branch
Dorsal buccal branch
Ventral buccal branch
1
Geniculate ganglion
2
Pterygopalatine ganglion + major petrosal nerve
3
Chorda tympani
4
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
Glossopharyngeal nerve (CN-IX)
Proximal ganglion
Distal ganglion
Minor petrosal nerve
Otic ganglion
Pharyngeal branch
Lingual branch
Hypoglossal nerve
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
