Larynx: Muslces Flashcards
What are the extrinsic laryngeal muscles decided into?
1) Elevators
2) Depressors
Which of the laryngeal muscles are considered the elevators?
1) Thyrohyoid
2) Stylohyoid
3) Mylohyoid
4) Digastric
5) Stylopharyngeus
6) Palatopharyngeus
Which of the extrinsic muscles of the larynx are considered to be depressors?
1) Omohyoid
2) Sternohyoid
3) Sternothyroid
Which of the muscle groups of the layrnx are smaller, intrinsic or extrinsic?
Intrinsic
Which of the intrinsic laryngeal muscles is NOT innervated by the recurrent laryngeal nerve?
(Upper tri students told me he really likes this as a question)
Cricothyroid Muscle
Which if the intrinsic laryngeal muscles are visible from the outer surface of the larynx?
Cricothyroid Muscle
What is the function of the cricothyroid muscle?
Tilts the cartilage downward or the cricoid cartilage upward, thus tensing the vocal cord (raising the pitch of the voice)
What is the only true abductor of the vocal folds?
Posterior Cricoarytenoid Muscle
What are the muscles that wil adduct the vocal folds?
1) Lateral Cricoarytenoid
2) Transverse Arytenoid
3) Oblique Arytenoid
What muscle is said to be a continuation of the oblique arytenoid and lies within the aryepiglotic fold?
Aryepiglottic Muscle
What is the function of the aryepiglottic muscle?
Close the laryngeal inlet
I mean, not that big of a deal ;)
What is the muscle that is said to be the antagonist of the aryepiglottic muscle? Why is it called this?
Thyroepiglottic Muscle
Because it opens the laryngeal inlet while the aryepiclottic muscle will close it
Which muscle will act to shorten and relax the vocal folds by drawing the arytenoid cartilages forward, in turn, lowering the pitch of the voice?
Thyroarytenoid Muscle
Which muscle functions to adjust the tension of the vocal folds during phonation (speech)?
Vocalis
