**The Diagram of Nephron**

A nephron is the basic functional unit of the kidney, responsible for filtering blood and producing urine. It consists of several distinct parts that work together to perform these functions. While I cannot provide an actual diagram here, I can describe the structure of a nephron in detail.

**Renal Corpuscle:**

The renal corpuscle is the first part of the nephron and is responsible for filtering blood. It consists of two main components: the glomerulus and the Bowman's capsule.

- *Glomerulus:* The glomerulus is a network of capillaries located within the Bowman's capsule. It receives blood supply from the renal artery and functions as the site of filtration.
- *Bowman's Capsule:* The Bowman's capsule surrounds the glomerulus and collects the filtrate produced from the blood. It has a cup-like shape and leads to the next part of the nephron.

**Proximal Convoluted Tubule (PCT):**

The proximal convoluted tubule is a twisted tubular structure connected to the Bowman's capsule. It is responsible for reabsorbing essential substances from the filtrate back into the blood.

**Loop of Henle:**

The loop of Henle is a U-shaped tube that follows the PCT. It consists of a descending limb and an ascending limb, which have different functions in the reabsorption and concentration of urine.

- *Descending Limb:* The descending limb is permeable to water, allowing it to pass through by osmosis. As the filtrate descends, water is reabsorbed, concentrating the urine.
- *Ascending Limb:* The ascending limb is impermeable to water but allows for the reabsorption of ions, such as sodium and chloride. This process establishes a concentration gradient in the kidney.

**Distal Convoluted Tubule (DCT):**

The distal convoluted tubule is another twisted tubular structure that follows the loop of Henle. It is responsible for further reabsorption and secretion of specific substances, including ions and waste products.

**Collecting Duct:**

The collecting duct receives the urine from multiple nephrons and carries it towards the renal pelvis for excretion. It plays a crucial role in the final concentration and volume of urine.

Overall, the nephron is a complex structure with various components working together to filter blood, reabsorb essential substances, and produce urine. The diagram of a nephron would illustrate the arrangement and connections of these different parts, providing a visual representation of the renal system's functionality.