Final answer:
Hyaline cartilage primarily supports the trachea by forming C-shaped rings that prevent collapse and maintain an open airway during breathing.
Step-by-step explanation:
The primary function of hyaline cartilage is to support the trachea. Hyaline cartilage forms the C-shaped rings that provide the trachea with structural support to prevent collapse during inhalation and exhalation. This type of cartilage is connected by dense connective tissue and lined with pseudostratified ciliated columnar epithelium, which together with the trachealis muscle and elastic connective tissue, comprise the fibroelastic membrane of the trachea. The flexibility of this membrane allows for slight stretching and expanding of the trachea as air moves in and out of the lungs. Moreover, the trachea functions as a conduit for air, directing it to the lungs, and is lined with goblet cells and ciliated epithelia to trap and expel foreign particles.