What type of cartilage are the arytenoid cartilages primarily composed of?

The arytenoid cartilages are primarily composed of both hyaline and elastic cartilage, which is critical for their function in the larynx. Hyaline cartilage provides the necessary strength and support for the framework of the larynx, allowing for the stability of the vocal folds during phonation. The elastic component allows for flexibility and the ability to return to shape after deformation, which is important when adjusting the tension of the vocal cords for pitch control.

This combination of cartilaginous tissue types enables the arytenoid cartilages to perform their essential roles in the modulation of voice and protection of the airway during swallowing. Their unique structure is vital for the complex movements required in vocalization, which involves both rapid adjustments and sustained positions.