Narrowest part in infant's respiratory tract is:
(a) Subglottis(Ref. Scott Brown, 8th ed., Voll; 326)In infant's larynx the diameter of cricoid cartilage is smaller than the glottis, making subglottis the narrowest part, whereas in adults the narrowest part is the glottis.
Subglottis
Glottis
Carina
None of these
Anatomy of Larynx