Relationship between Water, Osmosis, Ions, Blood Pressure and Kidney Function

Relationship between Water, Osmosis, Ions, Blood Pressure and Kidney Function

The kidney is a filtering tool of the blood. It also helps in homeostasis through regulating the level as well as concentration of the body fluids (water) and ions (such as chloride and sodium ions). In addition, it performs other functions including the reabsorption and secretion of different solutes such as ions. Blood pressure offers the driving force for water and ions to be transported. Water also flows freely in the body through the process of osmosis. Ions and other solutes in the body also promote reabsorption of water through osmosis. Water is a universal solvent and thus, helps in dissolving various ions in the body.

Where Ions are used in Cell Signaling in the body

Apart from the kidney, ions are also used in cell signaling in various parts of the body.  The follicle-stimulating hormone, which travels from the brain to the ovary, triggers the release of the egg. Thus, the brain uses ions for cell signaling. Another organ is the skin in which the sensory cells are able to respond to the pressure of touch.

Defining Electrolytes

Electrolytes are minerals that are in the blood and other body fluids, which carry electric charges. They have an impact on the amount of water in the body, the acidity of the blood, as well as the function of the muscles, in addition to many other important processes within the body. Common electrolytes include minerals such as calcium, sodium, magnesium, chloride, as well as potassium among others.

Importance of Electrolytes in the Body

Electrolytes are important minerals to the body that help in carrying electoral charges. The cells in the body depend on electrolytes in order to control cell membrane stability. Electrolytes also carry the charges needed for the processes of muscles contractions that are caused by the nerve impulses. Thus, without the presence of electrolytes, the cells would not be able to communicate with one another or perform the essential functions.  Effective functioning of the muscular, digestive, cardiac, as well as nervous systems all rely on the proper balance of the electrolyte levels.  This implies that the normal body functioning and performance are compromised whenever adequate levels of electrolytes are absent.  One of the major signals of electrolyte loss is the crumbing of the muscle.

Defining Buffers

A buffer is defined to mean a solution that is able to resist the change of pH upon the addition of either an acid or a base. It is a solution that is able to neutralize small levels of added acidic or basic components, therefore, maintaining the pH of a solution. 

An Example Where Buffers Are Used In the Body

Buffers are very important in the bodies of living organisms since most of the biochemical activities proceeds in a normal way when the pH remains stable. For instance, in the human body, buffers act in order to maintain the blood pH of between 7.35-7.45. One of the main buffers used is the bicarbonate buffer system. This allows the blood in the body to stay within the normal limit when breathing too little oxygen or a lot of oxygen. Hence, metabolic activities that are associated with exercise are a good example in which the body generates a lot of acid, which need to be neutralized by buffers.