<prompt> Structures passing through the sigmoid mandibular notch are:Auriculotemporal nerveMandibular nerveMasseteric nerve and vesselsChorda tympani  <response>: The upper border of the ramus of mandible is thin, and is surmounted by two processes, the coronoid process anteriorly and the condyloid process posteriorly, separated by a deep concavity, the mandibular notch, or sigmoid notch. It allows the passage of the masseteric nerve a branch of the mandibular nerve V3 division of the trigeminal nerve, masseteric artery and masseteric vein. 