1 — Lymphoid nodule; 2 — Villi intestinales; 3 — Center for reproduction of lymphoid nodule; 4 — Mucosa; Mucous membrane; 5 — Muscu-
laris mucosae
1 — Lymphoid nodule; 2 — Villi intestinales; 3 — Center for reproduction of lymphoid nodule; 4 — Mucosa; Mucous membrane; 5 — Muscu-
laris mucosae