Figure 3. Incisions to make the nasal mucosa flap - Notice the 8 to 10 mm incision above the middle concha insertion point, starting at about 3mm posterior to the insertion point and progressing anteriorly until about 10mm over the frontal process of the maxilla. The vertical incision extending all the way up to the 2/3 of the middle concha height and the last horizontal incision, from the unciform apophysis until it meets the vertical incision.