Kalmar "endoplasm" tana nufin ciki, mafi yawan ɓangaren cytoplasm a cikin tantanin halitta. Kalma ce da aka saba amfani da ita a cikin ilmin halitta don bayyana abin da ke cikin membrane tantanin halitta wanda ke dauke da kwayoyin halitta kamar mitochondria, ribosomes, da endoplasmic reticulum. An bambanta endoplasm daga waje, mafi tsauri na cytoplasm wanda aka sani da ectoplasm.
