摘要: The sections in this article are: 1 Comparative Anatomy 1.1 Invertebrates 1.2 Chordata 2 Human Large Intestine 2.1 Gross Anatomy of Human Intestine 2.2 Development 3 Histology and Ultrastructure Adult Mammalian Intestine 3.1 Cecum, Colon, Appendix, Upper Rectum 3.2 Tunica Mucosa 3.3 Tela Submucosa 3.4 Tunica Muscularis 3.5 Lymphoid Tissue Appendix 3.6 Tunica Serosa (Serosa) 3.7 Lower Rectum Anal Canal 4 Restitution 5 Concluding Remarks