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Figure 5: The arcuate eminence overlies the superior semicircular canal. The greater superficial petrosal nerve (GSPN) emerges out of the facial canaliculus on the anterior surface of the eminence and travels in a bony groove towards the V3, where it meets the deep petrosal nerve and enters the vidian canal as the vidian nerve

Figure 5: The arcuate eminence overlies the superior semicircular canal. The greater superficial petrosal nerve (GSPN) emerges out of the facial canaliculus on the anterior surface of the eminence and travels in a bony groove towards the V3, where it meets the deep petrosal nerve and enters the vidian canal as the vidian nerve