<prompt> True statement about the external nose isUpper 23 is bonyLower 13 is cailaginousSingle lateral cailageTwo nasal bones  <response>: External nose has an osteocailaginous framework of which upper one-third is bony and lower two-thirds is cailaginous. Bony pa- Consists of two nasal bones Cailaginous pa: - Consists of two upper lateral cailages, two lower lateral cailages, two or more lesser alar or sesmoid cailages anda septal cailage. So, there are 3 paired and 1 unpaired cailages. Ref: PL Dhingra, Diseases of Ear, Nose Throat, 7th edition, pg no. 149 