Elastic cartilage

The elastic cartilage is a specialized connective tissue that provides strength and elasticity. One of the organs that have this type of tissue is the epiglottis. The epiglottis is located at the root of the tongue that folds over the glottis. It prevents food or liquid from entering the trachea when you swallow. The elastic cartilage in the epiglottis also springs back into the at-rest position, allowing the body to breathe normally.

Source:
BD Editors. (2019, May 21). Elastic Cartilage. Biology Dictionary. https://biologydictionary.net/elastic-cartilage/

Ciliated pseudostratified columnar epithelium

The ciliated pseudostratified columnar epithelium begins from the nasal cavity down to the trachea, bronchi, and bronchioles. It provides mucosal surfaces which are important for conditioning the air before it reaches the alveolar tissue. The mucus is secreted by the goblet cells in the epithelium. Specifically, the cilia beat sweeping the mucus and the dust it carried up to the bronchi towards the pharynx, where it is swallowed.

Source:
Histology at SIU. (n.d.). Southern Illinois University. https://histology.siu.edu/crr/rsguide.htm

Hyaline cartilage

The hyaline cartilage provides structural support to your trachea. The cartilaginous rings of the hyaline cartilage holds the airway of the trachea.

The perichondrium is a layer of dense irregular connective tissue which surrounds the cartilage.

Source:
Brelje, C., & Sorenson, R. (n.d.). Hyaline Cartilage (trachea) | Cartilage and Bone. Histology Guide. https://histologyguide.com//slideview/MH-136-trachea/05-slide-1.html