Cytoplasm
The fluid between the nucleus and the surface membrane
Plasma (cell) membrane
What the cell is surrounded by. Made of proteins and lipids.
Cytoskeleton
In the cytoplasm, a supportive framework of protein filaments and tubules (small tubeish structures)
Intracellular Fluid / Cytosol
A clear gel where the cytoskeleton, organelles, and inclusions are embedded in
Extracellular Fluid
All the body fluids not contained in the cells. Ex: Blood plasma, lymph, and cerebrospinal fluid.