What tubules of the kidney?

The kidney tubules consist of the proximal convoluted tubule, proximal straight tubule, loop of Henle (consists of thin descending limb, thin ascending limb, thick ascending limb), distal convoluted tubule, and collecting ducts. Each of these segments plays a specific role in regulating fluid and electrolyte balance, acid-base balance, and solute transport. Together, they help to ensure that the body maintains the appropriate internal environment for normal cellular function