What is another word for "caecum"?

Roget's Thesaurus (1911) lists these synonyms for "caecum": air, alley, bar, blind, block, blockade, bolt, bung, button, caecal, choke, clinch, close, closure, constipation, contraction, cork, corner, cram, cul-de-sac, dam, door, down, embolus, fill, hermetically, hinder, hindrance, impassable, impenetrable, imperforate, imperforation, impermeability, impermeable, impervious, imporous, infarction, invious, keddah, obstipation.