Exam 2 Module 4 Flashcards
What is happening during adduction?
The inter-arytenoid muscles move the arytenoid cartilages together.
The lateral cricoarytenoid muscle rotates the artenoid cartilages
These actions adduct the vocal folds and close the glottis
When the vocal folds are adducted: choose all that apply
1) The glottis is 75% open
2) The air below the Glottis is fixed
3) Musclar action for exhalation continues and the lungs are compressed.
4. There is a decrease pressure on the vocal folds
2 and 3
When the vocal folds are abducted, their is an increase in pressure on the vocal folds.
True or false.
True
Air pressure will continue to build and will eventually reach a point where the adduction of the vocal folds is not strong enough to keep the glottis closed. Air pressure pushes the vocal folds open
True or false.
true
True or false:
When Air pressure pushes the vocal folds open, musclar action for adduction has ended.
False.
Musclar action for adduction is maintained throughout the cycle. The vocal folds will NOT LET GO at this point, they are just overpowered by air pressure.
True or false. At the time of increase air pressure and the vocal folds opening, there is no muscular activity abduction to the vocal folds until phonation is ended.
TRUE TRUE TRUE
Once the vocal folds are pushed open, air can escape from the lungs, reducing the amount of air in the lungs.
True or false.
true
Bernoulli effect:
Chose one
a) When the larynx muscles push air through the diaphragm in order to adduct the muscles.
b) When phonation has ended and the pressure in the lungs returns to normal, causing the vocal folds to stay open
c) When air that is moving between the vocal folds acts on them with a lower pressure than air that is not moving
c
true or false: Once the sub-glottal pressure is release, the vocal folds return to their original open position because of the ongoing contraction of the laryngeal muscle.
false
closed position
