Larynx Flashcards
function of intrinsic laryngeal muscles
opening or closure of rima glottidis
alters tension of vocal folds
opens or closes the laryngeal inlet
What muscle abducts the vocal folds to open the rima glottidis?
The posterior Cricoarytenoid muscle
which muscles are involved in closing the rim glottidis?
transverse arytenoid muscle
lateral Cricoarytenoid muscle
What does lengthening the vocal folds lead to?
increased tension and higher pitch
what does shortening the vocal folds lead to?
reduced tension and lower pitch
Which muscle closes the laryngeal inlet?
the oblique arytenoid muscle
What nerve provides Motor innervation the intrinsic muscles of the larynx (excl Cricothyroid)
recurrent laryngeal nerve
which nerve provides motor innervation to the Cricothyroid muscle?
the superior laryngeal nerve
The superior laryngeal and recurrent laryngeal nerve are branches of the…
vagus nerve (CN X)
Sensation just above the the vocal folds is supplied by the internal branch of the..
superior laryngeal nerve
sensation below vocal folds is supplied by the,..
recurrent laryngeal nerve
