Most of the conducting passageways of the respiratory tract are lined with pseudostratified ciliated columnar epithelium. The nasal mucosa, a portion of the respiratory mucosa, warms, humidifies and purifies the incoming air. Which features of the nasal mucosa is most closely associated with the function of warming the incoming air?

Nasal mucosa is lined with special type of tissue called Lamina propria which is highly vascularised & flexible to expand its volume.

Explanation:

Lamina propria is a type of areolar connective tissue which are found beneath the epithelial tissues. This Lamina propria when combines with basement membrane of epithelium then it is termed as mucosa.