Chapter 4 Part 2 Flashcards
One attachment to structures outside of larynx; laryngeal support and fixation
Extrinsic muscles
Muscles attached to structures only within the larynx; adjust for phonation
Intrinsic muscles
Intrinsic muscles of the larynx can be ….(4)
Abductors
Adductors
Tensors
Relaxers of vocal folds
Muscles that elongate and tense the vocal folds
Thyrovocalis, cricothyroid (Pars oblique, pars rectus)
muscles that relax and shorten vocal folds
Thyromuscularis
What makes up the cover of the vocal folds?
Epithelial and connective tissue
What makes up the body of the vocal folds?
thyrovocalis and thyromuscularis
What is the outer 1st layer of the vocal folds?
Squamous epithelium
Layer of the vocal folds that maintains shape of the vocal folds, Protects vocal folds,
Helps keep VF hydrated (barrier to dehydration)
Squamous epithelium
Holds epithelium to superficial layer of lamina propria made up of collagen
Basement membrane
What is the 2nd layer of the vocal folds?
Superficial lamina propria
Layer of the vocal folds that consists of elastin nonliving connective structural tissue ,cushions vocal folds
Superficial lamina propria
What is the 3rd layer of the vocal folds?
Intermediate lamina propria
Layer of the vocal folds that adds mechanical integrity
Intermediate lamina propria
What is the 4th layer of the vocal folds?
Deep lamina propria
Layer of the vocal folds that Contributes to the durability of the layer
Deep lamina propria
What is the 5th layer of the vocal folds?
Thyrovocalis
consistency of “stiff rubber bands”
and contracts to control stiffness
Thyrovocalis
What is the passive aspect of the thyrovocalis?
consistency of stiff rubber bands
What is the active aspect of the thyrovocalis?
Contracts to control stiffness
