A system of cisternae in the CYTOPLASM of many cells. In places the endoplasmic reticulum is continuous with the plasma membrane (CELL MEMBRANE) or outer membrane of the nuclear envelope. If the outer surfaces of the endoplasmic reticulum membranes are coated with ribosomes, the endoplasmic reticulum is said to be rough-surfaced (ENDOPLASMIC RETICULUM, ROUGH); otherwise it is said to be smooth-surfaced (ENDOPLASMIC RETICULUM, SMOOTH). (King & Stansfield, A Dictionary of Genetics, 4th ed)

Descriptor ID	D004721
MeSH Number(s)	A11.284.430.214.190.875.248
Concept/Terms	Endoplasmic Reticulum Endoplasmic Reticulum Reticulum, Endoplasmic Ergastoplasm

Below are MeSH descriptors whose meaning is more general than "Endoplasmic Reticulum".

Below are MeSH descriptors whose meaning is related to "Endoplasmic Reticulum".

Below are MeSH descriptors whose meaning is more specific than "Endoplasmic Reticulum".