Answer:
Thyroid and cricoid cartilage
Step-by-step explanation:
The laryngeal skeleton consists of six cartilages: three single (epiglottic, thyroid and cricoid) and three paired (arytenoid, corniculate, and cuneiform).
The thyroid cartilage is the largest of the nine laryngeal cartilages. Its main function is to protect the vocal cords, and to also serve as an attachment site for muscles and ligaments.