The blood vessels in the alimentary canal that nourish the epithelium and absorb digested nutrients lie in the ________.
A) lamina propria
B) muscularis mucosae
C) serosa
D) adventitia

Question

Quizplus · Accepted Answer

The lamina propria is a layer of loose connective tissue that lies beneath the epithelium of the mucosa. It contains blood vessels that nourish the epithelial cells and absorb digested nutrients. The muscularis mucosae is a thin layer of smooth muscle that assists in the movement of food through the alimentary canal, but it does not contain blood vessels. The serosa is a layer of connective tissue that covers organs in the abdominal cavity, but it is not directly involved in the absorption of nutrients. The adventitia is a layer of connective tissue that supports organs and attaches them to surrounding structures, but it is not found in the alimentary canal.

The Blood Vessels in the Alimentary Canal That Nourish the Epithelium