Location and Functions of the Larynx
Intrinsic Muscles of the Larynx
Intrinsic Muscles of the Larynx:
The intrinsic muscles move the arytenoid cartilages and adjust the tension applied to the vocal folds and ligaments. They are called intrinsic muscle because they originate and insert on the larynx.
- Transverse arytenoid – vocal ligaments adducted or moved together.
- Lateral cricoarytenoids – vocal ligaments adducted or moved together.
- Posterior cricoarytenoids – vocal ligaments abducted or moved apart.
- Vocalis & Thyroarytenoids – length of vocal ligaments reduced or vocal ligaments loosen.
- Cricothyroids – the length of vocal ligaments increase or vocal ligaments tighten.