Biology, asked by Anonymous, 1 year ago

a brief description about nephrone ...... no copied answer

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Answered by Blaezii
3

Hi Mate !

Answer!

A nephron is the basic unit of structure in the kidney. A nephron is used separate to water, ions and small molecules from the blood, filter out wastes and toxins, and return needed molecules to the blood. The nephron functions through ultrafiltration. Ultrafiltration occurs when blood pressure forces water and other small molecules through tiny gaps in capillary walls. This substance, lacking the blood cells and large molecules in the bloodstream, is known as an ultrafiltrate. The ultrafiltrate travels through the various loops of the nephron, where water and important molecules are removed, and into a collecting duct which drains into the bladder.

The glomerulus is the specialized configuration of capillaries within the nephron that make kidneys possible. Vertebrates are the only group to have developed kidneys, which is mostly used to conserve water in terrestrial environments. Fish and other primitive vertebrates excrete ammonia as a byproduct of protein reactions. Ammonia is toxic in the bloodstream, and must be removed. Reptiles and birds excrete uric acid, which is a more concentrated form of ammonia.

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Answered by rahul077
1

mate here is the answer

Nephrons are tiny tubules (miniature tubes) which make up the smallest working part of the kidney. In other words, they are the smallest level where the kidney removes waste, excess salt and excess water. Each nephron starts in the cortex of the kidney, then goes into the medulla of the kidney, before coming back to the cortex, then goes through the medulla into the pelvis.

Nephron of the kidney. The labelled parts are 1. Glomerulus, 2. Efferent arteriole, 3. Bowman's capsule, 4. Proximal convoluted tubule, 5. Cortical collecting duct, 6. Distal convoluted tubule, 7. Loop of Henle, 8. Duct of Bellini, 9.Peritubular capillaries, 10. Arcuate vein, 11. Arcuate artery, 12. Afferent arteriole, 13. Juxtaglomerular apparatus.

In humans, a normal kidney has between 800,000 and 1.5 million nephrons.

Each nephron consists of a cup-shaped structure at one end called the Bowman's capsule. It extends into a long urinary tubule,that is surrounded by a network of renal capillaries. The urinary tubules of nephrons in each kidney join to form a common tube called the ureter.

Inside the Bowman's capsule,is a network of blood capillaries called glomerulus. The Bowman's capsule and glomerulus together form the Malphigian capsule or Malphigian body.

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