Within the trachea, the ________ contains mucous glands that secrete mucus onto the epithelial surface through secretory ducts.
A) serosa
B) muscularis externa
C) lamina propria
D) submucosa
E) adventitia

Question

Quizplus · Accepted Answer

The submucosa within the trachea contains mucous glands that secrete mucus onto the epithelial surface through secretory ducts. The serosa is not present in the trachea, and the muscularis externa and adventitia are not involved in mucus secretion. The lamina propria is a component of the submucosa and may contain blood vessels and lymphatics but is not responsible for mucus secretion.

Within the Trachea, the ________ Contains Mucous Glands That Secrete