Here's a breakdown:

* Renal corpuscle: This is the filtering unit of the nephron. It's made up of:

* Glomerulus: A network of capillaries where blood is filtered.

* Bowman's capsule: A cup-shaped structure surrounding the glomerulus that collects the filtered fluid (filtrate).

* Renal tubule: This is a long, coiled tube that continues from the Bowman's capsule. It's responsible for:

* Reabsorbing needed substances from the filtrate back into the blood.

* Secreting waste products from the blood into the filtrate.

The renal tubule has different sections:

* Proximal convoluted tubule (PCT): The first part of the tubule, responsible for reabsorbing most of the water, electrolytes, and nutrients.

* Loop of Henle: A hairpin-shaped loop that creates a concentration gradient in the surrounding tissues, which aids in water reabsorption.

* Distal convoluted tubule (DCT): The final part of the tubule, responsible for reabsorbing water and electrolytes under hormonal control.

* Collecting duct: The final portion of the nephron where the filtrate (now called urine) is collected and transported to the renal pelvis.

So, the nephron is a functional unit of the kidney, responsible for filtering blood and producing urine. It's made up of a renal corpuscle and a renal tubule, which work together to regulate the composition of the blood and eliminate waste products.