Laryngeal Muscles Flashcards
1
Q
Thyroarytenoid
A
- tenses and relaxes body of the vocal folds
- contraction: stability of arytenoid and thyroid cartilage
2
Q
Cricothyroid
A
- laryngeal tensor
- Pars Recta: rocks the thyroid cartilage down toward the cricoid
Pars Oblique (X): glides thyroid cartilage away from arytenoid
3
Q
Lateral Cricoarytenoid
A
- laryngeal adductor and medical compressor
- closes membranous (2/3) of vocal folds
4
Q
Interarytenoids
A
- laryngeal adductor
- closes vocal processes
5
Q
Posterior Cricoarytenoid
A
- laryngeal abductor
- swings vocal processes open
6
Q
Vocal Folds
A
- 1/3 = cartilaginous
- 2/3 = membranous