Direction of Nasolacrimal duct is:: (A) Downward,backward and medially, (B) Downward,backward and laterally, (C) Downward,forward and medially, (D) Downward,forward and laterally
Answer is B. Nasolacrimal duct is q membranous passage which begins at the lower end of the lacrimal sac. It runs downward,backward and laterally and opens in the inferior meatus of the nose. A fold of mucous membrane called the valve of Hasner forms an imperfect value at the lower end of the duct. Ref: Dhingra 6/e,135.