The blood vessels in the alimentary canal that nourish the epithelium and absorb digested nutrients lie in the ________.

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The lamina propria is a layer of loose connective tissue that lies beneath the epithelium of the mucous membrane lining the alimentary canal. It contains blood vessels, lymphatic vessels, and scattered lymphoid tissue, and is responsible for nourishing and supporting the epithelium as well as absorbing digested nutrients. The muscularis mucosae is a thin layer of smooth muscle that contracts to help move food through the canal, while the adventitia and serosa are connective tissue layers that support and protect the outermost portions of the canal.

The Blood Vessels in the Alimentary Canal That Nourish the Epithelium