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. O Nasolacrimal duct opens in anterior pa of inferior meatus. O Direction of nasolacrimal duct is Backwards (Inwards),laterally and downwards (pneumonic: NLD). It courses anterior to maxillary ostium O Opening of nasolacrimal duct is guarded by Hasner's mucosal valve