<prompt> Which of the following bones do not contribute the nasal septum:SphenoidLacrimalPalatineEthmoid  <response>: Nasal septum consists of 1Osseous pa-Vomer,perpendicular plate of ethmoid,Nasal crest of nasal bone,nasal soine of front bone,nasal crest of palatine bone,nasal crest of maxillary bone,Rostrum of sphenoid bone. 2Cailaginous pa-septal cailage Ref.Dhingra 5e,p 162,6e,p 147. 