Red flag: Please note that sphenoid sinusitis often results in referred pain to the vertex of the head; the junction between Vi and C2 dermatomes.
Innervation of the sphenoid sinus: Sensory innervation is by the posterior ethmoidal nerves. Postganglionic parasympathetic fibres of the facial nerve that synapse in the pterygopalatine ganglion control mucous secretion.
Innervation of the sphenoid sinus: Sensory innervation is by the posterior ethmoidal nerves. Postganglionic parasympathetic fibres of the facial nerve that synapse in the pterygopalatine ganglion control mucous secretion.
Level 1
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