1. The nasal glands are innervated with secretomotor from the greater petrosal nerve. 2. Preganglionic parasympathetic fibres exit the geniculate ganglion as the greater petrosal nerve. 3. The inferior petrosal sinus is where the pituitary gland drains. 4. Also an inferior petrosal sinus enters the sigmoid sinus near the jugular foramen. 5. The greater petrosal , carries soft palate taste signals to the facial nerve. 6. I went to another team of doctors that immediately scheduled a petrosal sinus sampling. 7. The first is the greater petrosal nerve and the second is the chorda tympani. 8. This plexus gives off the lesser petrosal nerve. 9. The lesser petrosal nerve provides autonomic parasympathetic fibers that eventually innervate the parotid gland. 10. Note that a superior petrosal sinus enters the junction of the transverse and sigmoid sinuses.
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