Template:Appendix duplication table1
From Embryology
| Classification | Features |
| A | Single cecum with various degrees of incomplete duplication |
| B1 (bird type) | Two appendixes symmetrically placed on either side of the ileocecal valve |
| B2 (tenia coli type) | ne appendix arises from the cecum at the usual site, and the second
appendix branches from the cecum along the lines of the tenia at various distances from the first |
| B3 | One appendix arises from the usual site, and the second appendix arises from
the hepatic flexura |
| B4 | One appendix arises from the usual site, and the second appendix arises from
the splenic flexura |
| C | Double cecum, each with an appendix |
| Horseshoe appendix | One appendix has two openings into a common cecum |
| Triple appendix | One appendix arises from the cecum at the usual site, and two additional appendixes arise from the colon |
| Data source: [1] | |
