Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to intercalated disk: Intercalated disc
A modification of the cell membrane of adjacent cardiac muscle cells; it consists of extensive folds and intercellular junctions for electrical and mechanical linkage of contiguous cells.See: illustration
See also: disk
dark staining, transversely oriented bands scattered through cardiac muscle fibers; points of end-to-end contact between contiguous myocardial fibers.
small tubules connecting alveoli of salivary glands to intralobular striated ducts and finally to excretory duct.