Hakenfortsatz - Processus uncinatus
In front of the perpendicular plate of ethmoid (lamina papyracea) are some broken air cells which are overlapped and completed by the lacrimal bone and the frontal process of the maxilla. A curved lamina, the uncinate process, projects downward and backward from this part of the labyrinth; it forms a small part of the medial wall of the maxillary sinus, and articulates with the ethmoidal process of the inferior nasal concha.
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
Allgemeine Anatomie > Bones; Skeletal system > Skeleton axiale > Schädel > Siebbein > Siebbeinlabyrinth > Hakenfortsatz