<prompt> Uncinate process of ethmoid bone is attached anteriorly to the bone?SphenoidEthmoidLacrimalFrontal  <response>: Ethmoid bone is a pneumatic bone contains ethmoid air cells, superior middle turbinates. Ethmoid bone forms medial wall of orbit. Orbit wall Bone Medial Ethmoid bone Roof Frontal bone Lateral Zygomatic bone Floor Maxilla Uncinate process is a pa of ethmoid bone, coming from middle turbinate. Attachments: Anterior - Lacrimal bone frontonasal process of maxilla Posterior - Free but related to perpendicular plate of palatine bone. Inferiorly - Inferior turbinate. 