Final answer:
The intracellular fluid contains 60% of the body's water, while the extracellular fluid contains 20% of the body's water.
Step-by-step explanation:
The intracellular fluid (ICF) comprises approximately 60% of the body's water, as it lies within cells and constitutes a significant portion of the cytosol or cytoplasm. The extracellular fluid (ECF), which encompasses all fluids surrounding cells, including plasma and interstitial fluid, contains about 20% of the body's water. Notably, the ECF also includes a subset of fluids like the cerebrospinal fluid (CSF), ocular fluid, lymph, and synovial fluids, although these are in relatively minor volumes compared to the interstitial fluid and plasma.
The intracellular compartment contains 50% of the body's water, while the extracellular compartment contains 20% of the body's water.