In human anatomy , the appendix ( other names include vermiform appendix ; cecal ( or caecal ) appendix ; vermix ) is a blind ended tube connected to the cecum ( or caecum ) , from which it develops embryologically . In human anatomy , the appendix ( or vermiform appendix ; also cecal ( or caecal ) appendix ; also vermix ) is a blind-ended tube connected to the cecum ( or caecum ) , from which it develops embryologically .