Intrinsic Laryngeal Muscles Flashcards
1
Q
What CN supplies the intrinsic laryngeal muscles?
A
CN X
2
Q
Which muscle increases pitch?
A
Cricothyroid
3
Q
Which muscle decreases pitch?
A
Thyroarytenoid muscle
4
Q
Which muscles adduct = voice quieter?
A
Lateral crico-arytenoid muscles
Arytenoid muscles
5
Q
What are the 2 parts of the arytenoid muscles?
A
Oblique band
Transverse band
6
Q
Which muscle makes the voice louder?
A
Posterior crico-arytenoid muscles
7
Q
Which branches of the vagus supply the intrinsic muscles of the larynx?
A
External laryngeal nerve -> cricothyroid
inferior laryngeal nerve -> all others
