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How do kidneys maintain homeostasis in the body?

Updated on October 13, 2016

Maintaining homeostasis of the body.

The kidneys are like a two bean-shaped organ that extract waste and toxins from the blood stream and balance the fluids within the body. It also forms urine and performs other essential functions like regulation of blood pressure through the salt and water balance, and aid in red blood cell production in the body.

The kidneys are located on each side of the spine in the back muscles under the ribcage.

The kidneys are a pair of bean-shaped organs that is critical to your health and wellbeing. One of its primary function is to extract and dispose waste products from the blood and to ensure a balance of fluids within the body. The kidney regulates blood pressure by adjusting the salt and water level, and it also helps to maintain homeostasis by varying the urine concentration. For instance, the kidney reabsorbs water from the urine anytime the volume of water in the blood plasma is low. It also works to regulate the volume of water in the blood plasma when it is high, and this makes the urine highly diluted. The kidney performs this function to ensure that the water balance within the body is within the normal range.

The kidney usually adjusts any disruption of the body homeostasis due to other biological functions and stimuli which may affect the water balance of the body. For instance, when the body engages in exercises, the body temperature rises resulting in sweats breaking out which reduces the amount of water in the body. When it happens, the kidney reabsorbs water from the urine and transfers it back into the bloodstream.

Due to the importance of the kidney to health and wellbeing, it is necessary to avoid habits or lifestyles that could affect the kidney from performing its homeostasis functions efficiently.

You should always drink sufficient amount of water because the lack of water will only result in dehydration of the body which will grossly affect the kidney’s ability to eliminate toxins in the body. Ensure you drink 12 glasses of water every day to keep your body hydrated.

Another factor you should consider to protect your kidney is to avoid high consumption of salt in your food intake and diet plans. The high amount of salt in the body put pressure on the kidneys as it works to extract the excess salt and it could also bring about water retention in the body. Also, ensure that you empty your bladder regularly whenever you are pressed to do so no matter how busy or inconvenient it may be at the time. Holding back urine could affect the kidneys as urine contains bacteria which could multiply and affect the kidneys.

Medical practitioners always advise against the consumption of alcohol and smoking of cigarettes as it affects the kidneys. You may drink red wine due to the health benefits it has for the heart, but alcohol should be avoided. Smoking, on the other hand, narrows the blood vessels in the kidneys and as a reason, it affects the blood flow in the body. You need to avoid any habit or lifestyle that could damage your kidneys.

When your kidney is functioning well, it’s in a better position to appropriately maintain and regulate the homeostasis of the body.

Kidney within the body


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