Mandibular Nerve | Formation | Course | Relations | Branches скачать в хорошем качестве

Mandibular Nerve | Formation | Course | Relations | Branches

• Largest mixed branch of trigeminal N • Nerve of first pharyngeal arch • Associated with Otic & submandibular ganglion Formation & Divisions • Begins in middle cranial fossa ! Large sensory root – arises from lateral part of trigeminal ganglion Leaves the cranial cavity through foramen ovale ! Small motor root Passes deep to the trigeminal ganglion Passes through foramen ovale Joins with sensory root below the foramen forming the main trunk Lies in the infratemporal fossa, on the tensor veli palatini, deep to lateral pterygoid Then divides into anterior & posterior divisions Branches from Main trunk • Meningeal N – enters the cranial cavity through foramen spinosum Supplies the meninges of middle cranial fossa • N to medial pterygoid Supplies medial pterygoid Gives a motor root to otic ganglion without relay supplies tensor veli palatini & tensor tympani Branches from anterior division • 3 motor branches Masseteric N Deep temporal Ns N to lateral pterygoid !1 sensory branch Buccal N Branches from posterior division • Mostly sensory ! Auriculotemporal N Arises by two root Encircles Middle meningeal A Auricular part – supplies skin of tragus, upper part of pinna, external acoustic meatus & tympanic membrane Temporal part – supplies temple, TMJ, carries secretomotor & sensory fibres to parotid gland, ! Lingual N - ! Inferior alveolar N ------------------------------------------------------------------------------------------------------------- My website - https://human-anatomy-lessons.busines... My Blog - https://human-anatomylessons.blogspot... ---------------------------------------------------------------------------------------------------------------- Follow me in blogspot - https://human-anatomylessons.blogspot... _________________________________________________________________________________________________________________ Visit my blogs - https://humananatomyonline.in/ Contact me @ https://t.me/humananatomylessons