Question

Label this diagram of a nephron.

   Label this diagram of a nephron.

Human Biology

Sylvia S. Mader 11th Edition

Chapter 10, Problem 35

Instant Answer

Solved by Expert Rikhil Makwana

07/22/2019

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These typically include the glomerulus, Bowman's capsule, proximal convoluted tubule, loop of Henle, distal convoluted tubule, and collecting duct. Show more…

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Label this diagram of a nephron.

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Key Concepts

Renal Corpuscle

The renal corpuscle is the kidney's initial filtering unit, consisting of the glomerulus and Bowman's capsule. It is where blood is initially filtered, with small molecules passing through while larger components like proteins and cells are retained.

Glomerulus

The glomerulus is a network of capillaries within the renal corpuscle that facilitates blood filtration. Its porous structure allows water and soluble substances to be filtered out of the bloodstream into Bowman's capsule.

Bowman's Capsule

Bowman's capsule is a cup-like sac that surrounds the glomerulus. It collects the filtrate that is pushed out of the blood through the glomerulus, serving as the starting point for urine formation.

Proximal Convoluted Tubule

The proximal convoluted tubule is the first segment of the nephron tubule, responsible for reabsorbing a significant amount of water, electrolytes, and nutrients from the filtrate back into the bloodstream. Its cells have abundant microvilli to maximize reabsorption.

Loop of Henle

The loop of Henle is a U-shaped segment that dips into the kidney's medulla. It establishes an osmotic gradient which is vital for the kidney's ability to concentrate urine and conserve water.

Distal Convoluted Tubule

The distal convoluted tubule further processes the filtrate through selective reabsorption and secretion of ions. It plays a key role in regulating electrolyte balance and pH, often influenced by hormonal regulation.

Collecting Duct

The collecting duct gathers urine from multiple nephrons and is critical in the final concentration of urine. Its permeability to water is regulated by hormones such as antidiuretic hormone (ADH), which helps maintain body water balance.

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