petrosal nerve การใช้

• The nasal glands are innervated with secretomotor from the greater petrosal nerve.
• Preganglionic parasympathetic fibres exit the geniculate ganglion as the greater petrosal nerve.
• The first is the greater petrosal nerve and the second is the chorda tympani.
• This plexus gives off the lesser petrosal nerve.
• The lesser petrosal nerve provides autonomic parasympathetic fibers that eventually innervate the parotid gland.
• The visceral motor fibers pass through this plexus and merge to become the lesser petrosal nerve.
• Some of the fibres from the internal carotid plexus converge to form the deep petrosal nerve.
• The greater petrosal nerve, which carries preganglionic parasympathetic fibers, emerges from the anterior aspect of the ganglion.
• The lesser petrosal nerve then travels anteriorly from the hiatus toward the foramen ovale, through which it exits the cranial cavity.
• The tympanic plexus of nerves rejoin and form the lesser petrosal nerve and exit through the foramen ovale to synapse at the otic ganglion.
• They leave the glossopharngeal nerve by its tympanic branch and then pass via the tympanic plexus and the lesser petrosal nerve to the otic ganglion.
• The mucous membranes receive their postganglionic parasympathetic nerve innervation for mucous secretion originating from the greater petrosal nerve ( a branch of the facial nerve ).
• The lesser petrosal nerve re-enters and travels through the temporal bone to emerge in the middle cranial fossa just lateral to the greater petrosal nerve.
• The lesser petrosal nerve re-enters and travels through the temporal bone to emerge in the middle cranial fossa just lateral to the greater petrosal nerve.
• Upon exiting the skull, the lesser petrosal nerve synapses in the otic ganglion, which is suspended from the mandibular nerve immediately below the foramen ovale.
• The greater petrosal nerve travels through the middle ear and eventually combines with the deep petrosal nerve ( sympathetic fibers ) to form the nerve of the pterygoid canal.
• The greater petrosal nerve travels through the middle ear and eventually combines with the deep petrosal nerve ( sympathetic fibers ) to form the nerve of the pterygoid canal.
• Together, greater petrosal and deep petrosal nerves form the nerve of the pterygoid canal ( vidian nerve ) and they reach the pterygopalatine ganglion in the pterygopalatine fossa.
• Behind and lateral to the foramen rotundum is the foramen ovale, which transmits the mandibular nerve, the accessory meningeal artery, and the lesser superficial petrosal nerve.
• They traverse as a periarteriolar plexus with the internal carotid artery, before they merge and form the deep petrosal nerve, which joins the greater petrosal nerve in the pterygoid canal.