Kidney, Organ Excretion System in Humans that Dispose of Metabolism Waste
Excretion system in humans is a system that processes the elimination of residual substances resulting from metabolism. Metabolic waste consists of carbon dioxide (CO2), water (H2O), ammonia (NH3), urea, and bile substances. This metabolic waste must be removed from the body because it is toxic and can cause disease.
In addition to the lungs, skin and liver, the kidneys are one of the important organs of the excretory system in humans. The kidneys are located on both sides of the spine, precisely behind the abdominal cavity, under the rib cage. Kidney is an excretory organ that has the form of red beans and reddish brown. Humans have a pair of kidneys, the left and right. The right kidney is slightly lower than the left kidney because it is close to the liver. Each kidney measures about 10 to 12 cm, the size of a fist.
The role of the kidneys in the excretion system
In addition to filtering blood, controlling fluid balance and maintaining electrolyte levels in the body, the kidneys are very closely related to the human excretion system, which is responsible for removing bodily waste and toxins. Blood entering the kidneys will be filtered, as well as bodily fluids. The kidneys are also responsible for maintaining normal levels of water, salt and minerals. Filtered blood will return to other kidney organs. And filtered waste will then be released into the urine collected in the renal pelvis (renal pelvis). The ureter then moves the urine to the bladder where it is stored. Finally, urine flows from the bladder and leaves the body through the urinary tract.
The kidneys are important organs that are part of the urinary system and perform many functions, namely:
Given the importance of the kidney organ in maintaining overall bodily functions, it is also important for you to maintain the health of your kidneys. Some diseases that can interfere with the work of the kidneys are hypertension, inflammation of the kidneys, acute and chronic kidney failure and kidney tumors. In addition, diabetes can cause diabetic nephropathy. This condition can interfere with the work of the kidneys and the excretion system, so that toxins and waste in the body build up in the blood and cause various complications.
In addition to the lungs, skin and liver, the kidneys are one of the important organs of the excretory system in humans. The kidneys are located on both sides of the spine, precisely behind the abdominal cavity, under the rib cage. Kidney is an excretory organ that has the form of red beans and reddish brown. Humans have a pair of kidneys, the left and right. The right kidney is slightly lower than the left kidney because it is close to the liver. Each kidney measures about 10 to 12 cm, the size of a fist.
In addition to filtering blood, controlling fluid balance and maintaining electrolyte levels in the body, the kidneys are very closely related to the human excretion system, which is responsible for removing bodily waste and toxins. Blood entering the kidneys will be filtered, as well as bodily fluids. The kidneys are also responsible for maintaining normal levels of water, salt and minerals. Filtered blood will return to other kidney organs. And filtered waste will then be released into the urine collected in the renal pelvis (renal pelvis). The ureter then moves the urine to the bladder where it is stored. Finally, urine flows from the bladder and leaves the body through the urinary tract.
The kidneys are important organs that are part of the urinary system and perform many functions, namely:
- Excreting (excreting) the body's metabolic waste. The kidneys filter toxins, excess salt and urea, and nitrogen-based waste produced by cell metabolism. Urea is treated in the liver and transported by blood to the kidneys to be eliminated.
- Balance the fluid and electrolyte levels. Because the kidneys play an important role in the formation of urine chemistry, they react to changes in water content throughout the day. When water consumption decreases, the kidneys adjust and retain water in the body so that it does not run out of fluids.
- Regulate blood pressure. The kidneys need constant pressure to filter blood. When blood pressure drops too much, the kidneys increase blood pressure. This is done by producing angiotensin, which can cause blood vessels and retain salt and water in the body. This process will help blood pressure return to normal.
- Regulations of red blood cells. When the kidneys don't get enough oxygen, they send an emergency call in the form of erythropoietin, a hormone that stimulates bone marrow to produce more red blood cells that contain oxygen.
- Helps absorb calcium and maintain bone health by producing the hormone calcitriol.
- Adjust the acid levels in your body.
Given the importance of the kidney organ in maintaining overall bodily functions, it is also important for you to maintain the health of your kidneys. Some diseases that can interfere with the work of the kidneys are hypertension, inflammation of the kidneys, acute and chronic kidney failure and kidney tumors. In addition, diabetes can cause diabetic nephropathy. This condition can interfere with the work of the kidneys and the excretion system, so that toxins and waste in the body build up in the blood and cause various complications.
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