Human body is complex biological machine. It is made with trillions of cells. This cell is made of molecules and atoms. So there is a proper way of maintaining this huge number of cells. These cells require enough of water, chemicals, energy to remain active and function properly. How these cells get enough energy is another mazing matter. If any essential element lacks then body tends to be weak. Cells loses its ability to stay well functioned. When your cells become inactive, brain cells also become inactive. It is water, which is responsible for ensuring that you are getting enough energy.
How Water is Distributed
How do cells get required amount of energy? Is it possible to ensure that trillions of cells are getting enough of energy it require? Of course, it is possible. This why we are living. What our cells need is supplied through our blood. Blood works as runner throughout our body and conveys nutrients needed for cells. This travel of blood is called cardiovascular system. The main element of blood is water. Blood conveys oxygen from lungs, which is transported to cells with hemoglobin. Red blood cells contain hemoglobin, which needs water to remain floated during circulation so that it gets oxygen properly.
At the same time, gastrointestinal system contributes in supplying micronutrients such as glucose, salt and other chemicals to blood. However, before mixing to blood these nutrients require to be dissolved to blood particularly in water of blood. Then the nutrients are sent to the cells and tissues. So the body must ensure that the cells have enough of water. It also has to keep balance of water in the blood.
To understand how water is distributed it is necessary to understand cardiovascular system. At the same time, you have to understand where water is situated and how it is moved inside our body. Our body is mostly water made; almost 60% of our body weight is water.
The water is situated in two locations, inside the cells and outside the cells. It is said that almost two-third of water is situated inside body cells and rest of water is situated outside of the cells. Water that is situated inside the cells is called intracellular fluid and water, which is located outside the cells, is called extracellular fluid. This extracellular fluid is found between the cells, then this fluid is called interstitial fluid and some extracellular fluids is located in blood in the name of plasma.
Water works as a diluent for other chemicals such as potassium, glucose, sodium proteins. The interstitial fluid and plasma together is called volume and the chemical components broken in the volume is called chemical concentration. When interstitial fluid enters into the cells, then the volume level rises and concentration level drops down. On the other side when interstitial fluid come out of the cells then volume level falls and concentration level rises.
For well function of the cells, the concentration level and volume level must be balanced and constant. If this balance is not maintained then too much of water may enter into cells and can causes explosion of cells.
Water will normally come into the cells. So if the sodium-potassium plasma do not pump then there will be less water in the plasma. So body has to take charge to keep the balance of water in and out of the cells. It is natural process to balance water and chemical concentration either side of the cells. Water will normally goes from higher concentration to lower concentration. This is called osmosis. Due to this process chemical concentration remain almost similar to either side.
So this is all about how water moves throughout the body. Although it is little tricky to understand but I tried to make it easily understandable.