mandibular nerve and otic ganglion
TRANSCRIPT
Mandibular nerve
&
Otic ganglion
LT
MT
• Muscles
• Nerves
• Vessels
Contents of Infratemporal fossa
Mandibular nerve
• Largest of 3 divisions of trigeminal nerve
• Nerve of 1st branchial arch
• Mixed nerve
• Sensory- trigeminal ganglion, motor- pons
Mandibular nerve
Mandibular nerve
TRUNK
ANTERIOR
DIVISION
POSTERIOR
DIVISION
Branches of Mandibular nerve
From the main trunk
1. Meningeal branch (nervous spinosus)
2. Nerve to medial pterygoid (also supplies
tensor tympani & tensor veli palatini)
MENINGEAL
BRANCH
NERVE TO MEDIAL
PTERYGOID
Branches of Mandibular nerve
From the Anterior division
1. Masseteric nerve
2. Deep temporal nerves
3. Nerve to lateral pterygoid
4. Buccal nerve
MASSETER
TEMPORALIS
LATERAL
PTERYGOID
BUCCAL
NERVE
From the posterior division
1. Auriculo temporal nerve
2. Lingual nerve
3. Inferior alveolar nerve
3b Mylohyoid nerve
AURICULOTEMPORAL
NERVE
INFERIOR ALVEOLAR
NERVE
LINGUAL NERVE
Auriculotemporal nerve
Lingual nerve
Lingual nerve
It comes in direct contact with the mandible
medial to the third molar tooth. Here the nerve
is covered only by the mucous membrane of
the gum, and becomes palpable against the
mandible about 1 cm below and behind the
third molar tooth
Inferior alveolar nerve
Otic ganglion
• Parasympathetic ganglion
• 2-3 mm in size
• Topographically - mandibular nerve,
Functionally - glossopharyngeal nerve
Situation
Connections- Parasympathetic
Connections- Sympathetic
Connections-Motor