Definitions for "Medullary cavity"
Keywords:  diaphysis, marrow, cavity, bone, mehd
space within the diaphysis of a mature bone; it contains yellow marrow; also called the marrow cavity
(mehd-YOO-lar-ee KAHV-ih-tee) The potential space within the shaft of a long bone that contains yellow marrow.
Central cavity within a long bone, usually filled with marrow (but air-filled in some bird bones).