What are the Collections of Lymphatic Tissue Found in the Submucosa

Question

What are the collections of lymphatic tissue found in the submucosa of the small intestine?
A) parietal cells
B) Peyer's patches
C) villi
D) enteroendocrine cells

Accepted Answer

Peyer's patches are collections of lymphatic tissue found in the submucosa of the small intestine. Parietal cells secrete hydrochloric acid in the stomach, villi are finger-like projections on the surface of the small intestine that increase surface area for absorption, and enteroendocrine cells secrete hormones for digestion and metabolism.