Respiratory Function Of Larynx Flashcards
What state should larynx be in to allow breathing
Open
Area of space between fvf and TVF
Ventricles of morgagni
What do inhalatory muscles do
Active during inhalation and create more space in the thorax so it creates more lung volume which equals more negative air pressure within the lungs and breath is allowed to flow in
Exhalatory
Release of contraction in the diaphragm and external intercostal is enough to create less space in the thorax - increased air pressure allows an outward flow of breath
Flow will continue until resting expiratory level is reached
Resting expiratory level
Balance point where pressure within lungs equals the pressure in the atmosphere
How does exhalation continue once the REL is reached
Exhalatory and inhalatory forces are not at play at the REL and forbexhalation to continue internal inter coastal muscles and abdomen muscles much be enagagedb
Recoup breathing
The sensation of breath rushing in without having to actively breath
Tone
Produced by the interaction of breath and the true vocal folds
How is pitch created
TVF are drawn together and blown apart by the breath, changing air pressure.
Changes in the air pressure makes sound waves
Cycles per second in sound waves make the frequency, pitch
Fundamental frequency
The lowest and darkest trace on the screen
Parallel lines on voice print
Overtones and harmonics
TVF are ???? At Low Pitches
Short
TVF are ??? At high pitches
Long
Muscles that regulate the length of TVF
Thuroarytenoid - TA
Cricothyroid - CT
Intrinsic muscles
Those that run between any of the laryngeal cartilages
