Source:http://linkedlifedata.com/resource/umls/id/C0230840
GO: The inner, i.e. lumen-facing, lipid bilayer of the mitochondrial envelope. It is highly folded to form cristae. [GOC:ai],NCI: The inner mitochondrial membrane encloses a fluid-filled matrix and is elaborately folded with shelf-like cristae projecting into the matrix. The components of electron transport chain are integral part of the inner membrane.