<prompt> Medial wall of the orbit is formed by all of the following exceptFrontal process of maxillaOrbital plate of frontal boneOrbital plate of ethmoid boneSmall pa of the body of the sphenoid  <response>: The medial wall of the orbit is the thinnest is formed by 4 bones; from before backwards, these are frontal process of maxilla, lacrimal process of maxilla, orbital plate of ethmoid, and body of sphenoid.Reference: Textbook of anatomy, Head Neck, and Brain, Vishram Singh, 2nd edition, page no.282 