Flashcards in Chapter 15: Voice disorders Deck (17)
What is the space between the vocal folds called?
What is the space above the vocal folds, below the base of the tongue called?
What is the space below the true vocal folds called?
What is the aditus?
the opening of the larynx
What is the space between the false folds & the aditus called?
What are the 3 layers of the VF?
1. Cover- includes the superficial layer of the lamina propria
2. Transition- intermediate & deep layer of the lamina propria
3. body- thyroarytenoid muscle
Which nerve serves the larynx?
CN X- vagus
What is the vital capacity?
the amount of air available for use when lungs are inflated maximally
What is the Bernoulli effect?
occurs when a flow of air meets a constriction. This results in an increase in the airflow rate through the constriction balanced by an air pressure decrease at the point of constriction. This decrease in air pressure creates a suction effect & pulls the VF back towards one another
When does vibration of the VF occur?
the VF are in the adducted position & airflow from the lungs causes repeated opening & closing- results in voicing
What is phonation?
the degree of VF opening during speech production
What is fundamental frequency?
the number of time per second the VF open & close during voicing
Frequency is the inverse of what measure?
What determines fundamental frequency?
vocal fold mass & stiffness
What is jitter?
the varying in frequency (pitch) from one cycle to the next
what is shimmer?
the varying in amplitude (intensity) from one cycle to the next