Intrinsic Muscles
The muscles that are responsible for shortening and thickening the vocal folds. Associated with chest voice and lowering pitch.
Thyroarytenoid Muscles
The space between the vocal folds, present during abduction
Glottis
“The initiation of vocal tone.”
onset
The body of the vocal fold.
Thyroarytenoid Muscles
The muscles that stop phonation by rotating the arytenoid cartilages to open the glottis
Posterior Cricoarytenoid Muscles
As air flows through the glottis (increase in velocity), the pressure decreases. This negative pressure can no longer hold the glottis open, creating a vacuum.
What is the Bernoulli principle
This pressure is found beneath the vocal folds
Subglottal pressure
The ripples of discharge across the superior surface of the vocal folds
The Mucosal Wave
The two primary pairs of muscles involved in adduction
Lateral Cricoarytenoid Muscles & Interarytenoid Muscles
The muscles involved in adduction combined with the elasticity of the vocal folds and airflow dynamics are all part of this theory.
Myoelastic-Aerodynamic Theory of Phonation
Balanced, breathy and glottal
3 types of onset or offset
This cartilaginous structure houses the vocal folds.
The larynx
Muscles that act as the primary antagonist to the thyroarytenoid muscles and are responsible for raising pitch.
Cricothyroid Muscles
In a single cycle of vibration this is the first step
Vocal folds are gently closed by muscular forces within the larynx.
"When abduction occurs at the exact instant breath flow stops.”
Balanced Offset
The layer of the vocal fold which anchors to the Thyroarytenoid Muscles
the Deep Layer of the Lamina Propria
As air flows through the glottis (increase in velocity), the pressure decreases. This negative pressure can no longer hold the glottis open, creating a vacuum.
What is the Bernoulli Principle.
In order to initiate vocal fold oscillation breath pressure must be increased to exceed this.
PTP - phonatory threshold pressure.
Sound is initiated, sustained or stopped through the coordination of the larynx and this system.
Respiratory/pulmonary system
This vocal ligament, responsible for adding strength to the vocal folds, runs through this layer.
intermediate lamina propria