scholarly journals On the Comparative Anatomy and Function of the Nasal Tract in Odontocetes (Mammalia, Cetacea)

1973 ◽  
Vol 43 (2) ◽  
pp. 127-159 ◽  
Author(s):  
E.J. Schenkkan
Keyword(s):  
Respiratory Tract ◽  
Sound Production ◽  
Comparative Anatomy ◽  
Upper Respiratory Tract ◽  
Anatomical Features ◽  
Upper Respiratory ◽  
The Many ◽  
And Function

In the study of phonation in odontocete cetaceans and particularly that of echolocation by means of sonar, a great number of conflicting hypotheses have been advanced regarding the correlation of sound production with the many anatomical features that are to be found in the upper respiratory tract.

scholarly journals Pathophysiology of SARS-CoV-2 Infection in the Upper Respiratory Tract and Its Relation to Breath Volatile Organic Compounds

mSystems ◽  
2021 ◽  
Author(s):  
Moria Lichtenstein ◽  
Sondra Turjerman ◽  
Jayant M. Pinto ◽  
Orna Barash ◽  
Omry Koren
Keyword(s):  
Volatile Organic Compounds ◽  
Respiratory Tract ◽  
Organic Compounds ◽  
Upper Respiratory Tract ◽  
Metabolic Processes ◽  
Volatile Metabolites ◽  
Volatile Organic ◽  
Upper Respiratory ◽  
The Many

Among the many products of metabolic processes are volatile organic compounds (VOCs). In the airways, these volatile metabolites are emitted through breathing and thus are easily sampled for analysis.

scholarly journals Peculiarities of the upper airways condition in patients with snoring and obstructive apnea during sleeping

2021 ◽  
pp. 12-18
Author(s):  
Yuriy V. Minin ◽  
Tetiana I. Kucherenko ◽  
Ganna Y. Minina
Keyword(s):  
Respiratory Tract ◽  
Sleep Disordered Breathing ◽  
Clinical Manifestations ◽  
Upper Respiratory Tract ◽  
Upper Airways ◽  
Anatomical Features ◽  
Obstructive Sleep ◽  
Severe Manifestation ◽  
Analysis Of Results ◽  
Upper Respiratory

Aim: study the anatomical features of the upper respiratory tract in patients with ronchopathy of varying degrees of clinical manifestations. Materials and methods: 60 patients with persistent snoring were under supervision. They were divided into four clinical groups depending on the degree of snoring and obstructive sleep apnea. All patients underwent clinical and instrumental examination, which included cardio-respiratory monitoring and MRI examination of the upper respiratory tract. Results: In the comparative analysis of results of clinical studies of the upper respiratory tract of patients with and without obstructive sleeping apnea, there was a statistically significant narrowing of the retroglossal space in 45,7% and 16%, respectively. In the analysis of morphometric parameters of the upper respiratory tract in patients with sleep-disordered breathing of varying severity, there was a narrowing of the retropalatinal and retroglossal lumens of the pharynx due to the increase in the soft palate and tongue with its dislocation posteriorly. It is stated that more pronounced narrowing of the lumen of the upper respiratory tract leads to respiratory disorders during sleeping. The most severe manifestation of respiration deterioration during sleeping were observed in the narrowing of the upper respiratory tract at several levels.

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