Sagittal Area of the Vocal Tract in Young Female Children

Abstract

Objective: To measure the sagittal areas of the front and back cavities of the vocal tract in children acquiring speech. Patients and Methods: Ten female children were selected from the Serial Experimental collection of the Burlington Growth Centre in Toronto, Canada. Each of the 10 children was seen annually from ages 3 through 8. Data collections included lateral cephalograms in occlusion. We traced those cephalograms and identified landmarks to delineate the front and back cavities. The sagittal areas of the front and back cavities were calculated. A measure of the angle of the head to the cervical vertebrae was made. Results: Front cavities were larger and grew faster. For both front and back cavities, age, angle measure, and the interaction of age and angle measure were significant. Conclusion: Space available for the tongue to maneuver is greater anteriorly than posteriorly even when the jaw is maximally elevated.

Revisiting the Morphometry of Cricoid Cartilage and Vocal Folds

“…Diabetic retinopathy (DR) is one of the most feared complications of diabetes. Several researches have been done to estimate the prevalence of DR (6)(7)(8)(9). Blindness caused by DM currently affects approximately 15 Introduction Larynx is an air passage, phonation organ and acting as a sphincter.…”

“…Since the morphometric properties of the larynx alter significantly in childhood period of the life, recent studies focused on properties of pediatric larynx. (6)(7)(8). These studies described the narrowest parts of the pediatric larynx helping the surgeons during surgical procedures such as endotracheal intubation.…”