Nasolacrimal duct opens into
Nasolacrimal duct begins at the lower end of the lacrimal sac, runs downwards, backward and laterally, opens into the inferior meatus the nose. Fold of mucous membrane called the valve of Hasner forms an imperfect valve at the lower end of the duct. Ref.BDC volume 3;sixth edition pg no 77
Superior
Inferior meatus
Middle
Sphenoethmoid recess
Head and neck