Exam 1 Part 4 Flashcards
What is the sequence of vocal fold tissue?
Epithelium, basement membrane, superficial LP, intermediate LP, deep LP, and Thyroarytenoid muscle (vocalis then muscularis).
Thin layer of slippery mucous lubrication needed for vocal folds to oscillate best
Mucosal layer
What makes up the mucocilliary blanket that covers the epithelium?
Mucinous layer, serous layer
Part of the mucocilliary blanket that is the outermost viscous protective layer
Mucinous layer
Part of the mucocilliary blanket that is watery and has cilia
Serous layer
What makes up the superficial layer of the lamina propria?
Elastin
What is the function of the superficial layer of the lamina propria?
Acts as a cushion, vibrate significantly during phonation
What makes up the intermediate layer of the lamina propria?
Elastin, some collagen
What layers of the lamina propria vibrate during phonation?
Superficial, intermediate
What makes up the deep layer of the lamina propria?
Collagen that is interspersed to connect the lamina propria to the thyrovocalis muscle
Prohibits extension/stretch and provides tensile strength
Collagen
Muscle in the vocal fold that provides mass, tone, and stability
Thyroarytenoid muscle
This layer of the vocal fold produces mucous to keep the vocal folds wet and moist. This production absorbs excess heat and reduce tissue damage.
Epithelium
This layer of the vocal fold has the highest tensile strength, and therefore is less flexible.
Deep layer of the lamina propria
This layer of the vocal fold has the greatest flexibility.
Superficial layer of the lamina propria