<prompt> Which of the following is termed as vidian nerve?Lesser petrosal nerveGreater petrosal nerveLesser ethmoidal nerveGreat sphenoidal nerve  <response>: The nerve of the pterygoid canal Vidian nerve is formed by the junction of the greater petrosal nerve and the deep petrosal nerve within the pterygoid canal containing the cailaginous substance, which fills the foramen lacerum. Ref - pubmed.com 