Nasal valve is formed by all except:
Septum
Middle turbinate
Lower end of upper lateral cailage
Inferior turbinate
Anterior nasal valve it is the narrowest pa of nose and is less well defined physiologically than anatomically. It is formed by the lower edge of the upper lateral cailages, the anterior end of the inferior turbinate and the adjacent septum. Ref. Dhingra 5/e, p 150.
Nose and paranasal sinuses