anatomy Flashcards
the lateral cricoarytenoid muscle is innervated by what nerve?
recurrent laryngeal (a branch of the vagus)
the cricothyroid is the one intrinsic laryngeal muscle that isn’t innervated by the recurrent laryngeal. Instead it’s innervated by the…
external laryngeal nerve
the lateral cricoarytenoid muscle is located btwn… and does what?
btwn: cricoid and arytenoid.
contraction causes adduction of the vocal ligament
posterior cricoarytenoid muscles are innervated by…
the recurrent laryngeal nerve
posterior cricoarytenoid goes from where to where? does what?
goes from: cricoid —> arytenoid cartilages.
it abducts the vocal ligament
the thyroarytenoid muscle is innervated by what?
recurrent laryngeal nerve
the thyroarytenoid muscle connects what? does what?
thyroid —> arytenoid cartilage
does: loosening of the vocal ligament
vocalis muscle is innervated by…
recurrent laryngeal nerve
vocalis muscle connects what? does what?
connects: the most medial part of the thyoarytenoid muscle —> thyroid cartilage/vocal ligament or arytenoid cartilage/vocal lig.
- it causes tension on segments of the vocal ligament
only muscle in the intrinsic laryngeal muscles not innervated by the recurrent laryngeal?
cricothyroid
