obsolete anatomical chamber true 10.10.2011 See CARO tracker #6, but essentially Chamber has connotations of space, rather than wall: see http://en.wiktionary.org/wiki/chamber This term is extremely abstract as a genus - it specifies no granularity at all. It could refer to a chamber in a protein complex in a membrane as easily as some big multi-tissue structure like a segment of gut. Anatomical structure that surrounds an immaterial anatomical entity.