1 — Appendix; Vermiform appendix; 2 — Orifice of vermiform appendix; 3 — Caecum; 4 — Ileocaecal lip; Inferior lip; 5 — Ileal papilla, frenulum of ileal orifice; 6 — Ileocolic lip; Superior lip; 7 — Ascending colon; 8 — Free taenia; 9 — Anterior caecal artery; 10 — Ileal orifice; Orifice of ileal papilla; 11 — Ileum, terminal ileum; 12 — Meso-appendix; 13 — Appendicular artery
