Brain. Part 2

mucous membrane of the nasal part of the pharynx, behind the auditory tube
Pharyngeal nerve

n. Intermedius - portio intermedia n. Facialis - n. petrosus major

Medial view of the contents of the pterygopalatine fossa

nasopalatine nerve

mandibular nerve

1. The buccal nerve (n. buccalis)
2. The lingual nerve (n. lingualis)
3. The inferior dental nerve (n. alveolaris inferior)
4. The auriculotemporal nerve (n. auriculotemporalis)
Muscle branches for innervation chewing muscles .
Buccal Nerve
contains sensory fibres
the buccal membranes of the mouth (i.e. the cheek)
second and third molar teeth
Inferior Alveolar Nerve
carries both sensory and motor axons: mylohyoid nerve - mylohyoid and anterior digastric muscles.
sensory axons enter the mandibular canal - mandibular teeth.
mental nerve - lower lip and chin

Auriculotemporal Nerve
Superior root – comprises sensory fibers.
Inferior root – carries secretory-motor parasympathetic fibers, originating from CN IX, to the parotid gland.
Anterior part of the auricle
Lateral part of the temple
Anterior external meatus
Anterior tympanic membrane

auriculotemporal nerve
lingual nerve
Lingual Nerve
carries general sensory axons + special sensory and autonomic fibers (chorda tympani (CN VII)) – tactile, pain and temperature of tongue + 2/3 anterior taste and mucus membrane lining its undersides.
autonomic fibers branch - submandibular ganglion (submandibular and sublingual glands).

n. stapedius
n.posterior auricular
digastric branch
temporal branches
zygomatic branches
buccal branches
mandibular branch
cervical branch
greater petrosal nerve
chorda tympani
facial nerve

canalis facialis
Intracranial branches
Greater petrosal nerve
Communicating branch to the otic ganglion
Nerve to stapedius
Chorda tympani
Parasympathetic innervation to submandibular gland
Parasympathetic innervation to sublingual gland
Special sensory taste fibers for the anterior 2/3 of the tongue

Geniculate ganglion (Ganglion geniculi)
Greater petrosal nerve (Nervus petrosus major)
Deep petrosal nerve (Nervus petrosus profundus)
Chorda tympani