Answer:
1 and 2 are components of intracellular fluids, while 3 and 4 are of extracellular fluids.
Explanation:
The fluid in the body can be categorized as either extracellular or intracellular, based on the fluid component as well as where they are found.
Extracellular fluids are found outside the body cells, while intracellular fluids are found inside of cells enclosed by the plasma membranes.
1. cytoplasm of a neuron and 2. Cytosol of a red blood cells are components of intracellular fluids found within cells.
3. Interstitial fluid and 4. Blood plasma are primary components of extracellular fluids found outside the surrounding of cells.
