Description: Vân Tiếng Anh - Học Tiếng Anh Online Miễn Phí
The distal convoluted tubule (DCT) is a segment of the nephron in the kidney that helps regulate the body's electrolyte balance, blood pressure, and pH level by reabsorbing or secreting ions and molecules into the urine. It is located between the loop of Henle and the collecting duct.
The DCT is responsible for the final adjustments to the composition of urine before it is passed into the collecting ducts. It reabsorbs sodium, calcium, and chloride ions from the urine, while secreting potassium and hydrogen ions into the urine. This process helps to maintain the proper balance of electrolytes in the body.
In addition to its role in ion regulation, the DCT is also involved in the secretion and reabsorption of certain hormones and drugs, such as aldosterone and thiazide diuretics. These substances can affect the reabsorption and excretion of electrolytes and water in the body, and the DCT plays a crucial role in maintaining the body's fluid and electrolyte balance.