The kidneys have the important job of
filtering waste products, excess water, and toxins from the blood. They help regulate blood pressure, balance electrolyte levels, and maintain the body's fluid balance. Additionally, the kidneys produce and release hormones that control red blood cell production, calcium absorption, and blood pressure regulation.
filtering waste products and excess fluid from the blood to produce urine. They help maintain the balance of water, electrolytes, and other substances in the body and regulate blood pressure. The kidneys also play a role in the production of red blood cells, activation of vitamin D, and removal of toxins and drugs from the body. Additionally, they help regulate the pH level of the blood and excrete certain metabolic waste products such as urea and creatinine.
filtering waste products from the blood and regulating the levels of fluid and electrolytes in the body. They help maintain homeostasis by filtering out excess water, salts, and waste products such as urea and creatinine. The kidneys also play a crucial role in regulating blood pressure, producing hormones that stimulate red blood cell production, and activating vitamin D to maintain healthy bones.
To understand how the kidneys perform these functions, one must learn about the nephron, the functional unit of the kidney. The nephron is composed of a glomerulus, a network of tiny blood vessels, and a tubule. The blood is filtered through the glomerulus, allowing small particles like water, electrolytes, and waste products to pass through. These filtered substances then proceed through the tubule, where essential nutrients such as glucose and electrolytes are reabsorbed, and additional waste products and excess fluid are excreted as urine.
The kidneys' functioning can be evaluated through various tests, including blood tests and urinalysis. Blood tests measure creatinine and blood urea nitrogen (BUN) levels to assess kidney function, while urinalysis examines the composition of urine for any abnormalities such as the presence of blood, protein, or infection.
If there is a concern about kidney function or any related symptoms, it is important to seek medical advice. A healthcare professional can evaluate the individual's symptoms, conduct thorough examinations, and order appropriate tests to assess kidney health.