Final answer:
The three compartments in the body that store water are the intracellular fluid, blood plasma, and interstitial fluid. These compartments are integral for maintaining body functions and homeostasis, with water content varying across different body tissues.
Step-by-step explanation:
Understanding Body Water Compartments
The human body is comprised of various fluid compartments that serve essential physiological functions. About 70-80% of the human body is made up of fluids, primarily suspended in water. Intracellular fluid (ICF), extracellular fluid (ECF), and interstitial fluid (IF) are three main compartments where body water is stored.
Intracellular fluid refers to all the fluid contained within cells, encompassing approximately 50% of our body weight. Extracellular fluid is the fluid that surrounds all cells and is divided into two key components: the blood plasma, which is the fluid part of the blood, and the interstitial fluid, surrounding cells that are not blood cells.
While other fluids like cerebrospinal fluid, lymph, and others are part of the ECF, they represent smaller volumes compared to the primary compartments. Therefore, the three primary compartments in the body that store water are the intracellular fluid, blood plasma, and interstitial fluid. Option 3) from the student's question correctly lists these compartments.
It is also of note that water content can vary significantly in different body tissues, which emphasizes the importance of these fluid compartments in maintaining homeostasis and enabling various physiological processes.