the results ( central apnea with open or secondarily closed glottis ; obstructive apnea with closed glottis or with expiratory valve phenomenon ) raise the hypothesis of a central physiopathological mechanism common to the various types of apneas through a more or less dissociated inhibition of the activity of the respiratory , laryngeal , intercostal , and diaphragmatic muscles : -- in central apnea : inhibition of the thoracoabdominal activity and maintenance of the tonicity of the laryngeal muscles , keeping the glottis open ; -- in obstructive apnea : persistence of the thoracic and/or abdominal activity with inhibition of the activity of the laryngeal muscles , leading to a passive obstruction due to the effect of inspiratory depression .
C0017681
glottis
C0023078
laryngeal