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What are the branches of the maxillary artery?
- - Superior Alveolar Artery
- - Inferior Alveolar Artery
- - Middle meningeal artery
- - Infraorbital
- - Sphenopalatine
Chorda tympani nerve
- CN XII (facial, 7)
- -Joins with lingual nerve
- -Provides special sensory taste to anterior 2/3 of tongue
- -Visceral motor parasympathetic innervation to submandibular and sublingual salivary glands
- -Preganglionic parasympathetic neurons from CN 9 exit the middle ear as the lesser pretrosal nerve, go through foramen ovale and synapse on otic ganglion.
- -Postganglionic parasympathetic neurons then provide visceral motor innervation to parotid gland.
Mandibular branch of trigeminal (CN 5) gives off:
- 1. Buccal nerve
- 2. Inferior alveolar nerve
- 3. Lingual nerve
Presentation and reason for signs/symptoms?
- -Ptosis (drooping of upper eyelid) : Results from loss of sympathetic innervation to the superior tarsal muscle.
- -Anhidrosis (decreased sweating): results from loss of sympathetic innervation to sweat glands
- -Miosis (constricted pupil): Results from loss of sympathetic innervation to dilator pupillary muscle.
- -Flushed face.
- -Found on side ipsilateral to injury
What are the 4 cranial nerves that carry visceral parasympathetic innervation to the head?