Nasal valve is formed by all except:: (A) Septum, (B) Middle turbinate, (C) Lower end of upper lateral cailage, (D) Inferior turbinate
Answer is B. 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.