pH in Blood : How it is maintained in the body ?
In order for the body to function normally, the maintenance of the acidity and alkalinity of the body is vital. The normal pH of blood is 7.35 to 7.45 with an average of 7.4. This slightly alkaline blood pH must be maintained to avoid detrimental effects like comma and evident death. How the body maintains its acidity and alkalinity is a complex process. Presented here is a simple outline regarding the complex process.
Organs involved
The organs involved in the maintenance of blood pH are the lungs and the kidneys. The lungs exhale carbon dioxide to help with pH control while the kidneys excrete hydrogen ions and bicarbonates according to the needs of the body.
Substances involved
Carbon dioxide and hydrogen are considered acidic substances they are excreted more when the body is too acidic. Bicarbonate is considered an alkaline substance so it is excreted more when the body is too alkaline.
Processes that occur
How the body maintains its acidity and alkalinity is based on the processes that occur in the kidneys and the lungs.
Hyperventilation
When the kidneys are dysfunctional and could not respond to the imbalance in blood pH, the lungs will respond. People hyperventilate to bring out more carbon dioxide, an acidic substance, thereby decreasing the acidity of the blood. When there is alkalosis, hypoventilation occurs to retain more carbon dioxide hence, making the blood more acidic.
Bicarbonate excretion by the kidneys
If the lungs are dysfunctional, the kidneys will respond by increasing or decreasing the excretion of bicarbonate and hydrogen ions. When the body is acidotic or has the condition acidosis, the kidneys will excrete more hydrogen ions and retain more bicarbonate to return the blood pH to normal. When the body is alkalotic, the kidneys will increase the excretion of bicarbonate and decrease the excretion of hydrogen ions. Through these processes, the blood pH is maintained.
Acid-base buffer system in the body
The formation of carbonic acid and bicarbonate is reversible so when the body needs more alkalinity, bicarbonate is formed. If the body needs more acidity, carbonic acid is formed.
Homeostasis is maintained through these processes and normal blood pH is restored. In cases where both the lungs and the kidneys are dysfunctional then medical intervention is needed and appropriate medication or management is given to the patient.
Knowing how the body maintains its acidity and alkalinity is good because you will understand why at times you hyperventilate even when you do not want to.
In order to survive, the body must maintain the proper acid/alkaline (pH) balance. The optimum pH of the blood is somewhat alkaline, 7.3-7.4, and various tissues and organ systems vary from these numbers. Since all metabolic reactions are dependent on the pH, which is to say they only operate ideally within a certain range of pH, the organism must stabilize the blood-pH within a narrow range of between 7.36 and 7.44 (many researchers feel the range is actually much smaller). Only in this range is the blood ideally supplied with oxygen. If the blood pH goes over 7.44, there is a risk to develop degenerative conditions. The pH balance can be affected by many factors including the food we eat, stress, pollution and the quality of our thoughts and emotions. If this balance cannot be maintained, the body will begin to break down and die. The body is constantly striving to maintain this balance, and there are many processes by which this is accomplished. The potential of Hydrogen & Oxygen (pH Alkaline) is a key factor in attaining alkaline balance. The Hydrogen/Oxygen matrix (Alkaline pH) is the bringer and protector of life, it carries the life-giving form. The body is 75% water or H2O. Which means that there are two atoms of hydrogen and one of oxygen. Thus, there are twice as many hydrogen atoms as oxygen contained within a water molecule. The scale that is used for measuring the pH, or hydrogen ion concentration … is from 0 to 14, with 7 being the neutral point. The scale for the concentration of hydrogen ions is called the pH value. This stands for potential Hydrogen or strength of the hydrogen. The pH value indicates whether a solution reacts alkaline, neutral, or acid. In a neutral solution, such as pure water, the pH is exactly 7. The pH of an acid solution is less than 7, the pH of an alkaline solution is higher than 7. Thus, an Alkaline Body pH means that the pH of the blood is above 7 with the ideal pH being 7.35. Outside of this range - the body activity is no longer optimal and the metabolism is out of balance. There are several buffer systems established in the body to neutralize acids. One example is the fat buffer system. LDL (low-density lipoprotein) fat serves to bind acids from the body fluids (blood, lymph and extra cellular fluids) so the acids can be excreted from the body in the urine. However, a compromised body, overloaded with acids, may be unable to eliminate them. In order to protect the vital organs, the fat-bound acids may be dumped into storage areas such as the hips, thighs, stomach, etc., creating obesity. Alkaline salts are also used to buffer acids. The main ones are sodium, potassium, calcium and magnesium, and they are held in reserve in the tissues. When there is excess acid, these salts are called upon to bind with the acids to neutralize them. The acids can then be eliminated from the body through the colon, kidneys, lungs and skin. If there are inadequate reserves in the tissues, the body will pull these salts from the bones (calcium) and muscles (magnesium). For example, the overburdened acidic body will be forced to take calcium from the bones in an attempt to restore alkaline balance. This can result in the disease called osteoporosis. Post-menopausal women who eat an acidic diet rich in animal foods and low in vegetables are especially at risk for this condition.
* Arteriosclerosis, Heart Attacks, Stroke, High Cholesterol, Heart Disease, High Blood Pressure Weakening of the skin, hair, nails, teeth
It is important to regularly cleanse the body to get acid/alkaline under control..., which takes time. It is not easy to reverse acidity once we become too acidic. After it is under control, we have to support the body nutritionally to build new cells. We are in an era of malnutrition because of the lack of minerals available in the soils where our foods are grown. What we have is a lot of food but very little nutrient value in it. Increase your body's level of oxygenation by drinking super water, regular internal cleansing and exercise, and plenty of super foods & nutrients. Consider monitoring the body pH level on at least a weekly basis. Monitor daily if you so desire. It is a good practice to be aware of the Alkaline/Acid condition of your body. The pH is measured by a urine or saliva test … which is very simple to do and requires less than a minute of your time. Find Hydrion pH Testing Strips which are available through most drug stores and some health food stores. These are color coded into a general pH range … and you should look for test strips that will register half-point increments. When using these test strips as your guideline … balance the body pH between 7 and 7.5. If the test strips read above 7.5 consume acid forming foods or beverages until it stabilizes between 7 and 7.5. Do Not exceed this range for excessive alkalinity can also cause some health related problems such as: indigestion, cramps, drowsiness, itching, sore muscles, creaking joints, etc. · eating alkalizing foods including lots of organic green foods, sea vegetation, Coral Calcium, sprouted grains and seeds and alkaline forming sweeteners, such as 100% maple syrup, molasses or raw, un pasteurized honey and other super nutrient foods such as raw cacao · the introduction of unrefined Sea Salt into the diet which contains the numerous elements that buffers the sodium chloride part of the salt and make up as much as 16% by weight in valuable trace elements and macro-minerals. The following food choices will have an influence on the pH Level of the body: For more alkaline/acid food choices click here to see the pH chart. by Robert O. Young, Ph.D., and Shelley Redford Young |
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