Fig. 4.
Airway Measurements. a. Nasopharynx airway at A point level (participants with Down syndrome*). b. Oral pharyngeal airway space at level of maxillary central incisor (participants with Down syndrome*). c. Hypopharynx airway space at B point level (participants with Down syndrome*). d. Deep pharynx airway at level of pogonion (participants with Down syndrome*)