Question

define nephron... jaldi plz​

Answer 1

Answer:

each of the functional units in the kidney consisting of a glomerulus and it's associated tubule through which the glomerular filtration passes before emerging as urine .....

hope this will help you.......

Answer 2

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Nephron :

• It is the structural and functional units of kidney , Each kidney contains millions of nephrons .
• Nephron are the filtering units of the urinary system , which filter out excess salts , urea and water from the blood .
• When blood passes through the kidney , that is through the nephrons ,it gets cleaned and is transported back to other parts of the body .
• Glucose , amino acids ,salts etc are reabsorbed in the kidney .

Each Nephron has two parts :  

1] Malpighian corpuscles

2] Renal tubule  

1] Malpighian corpuscles : It comprises glomerulus and Bowman’s Capsule  

• Glomerulus : Glomerulus filtration takes place here with the help of afferent arteriole .
• Bowman’s Capsule : It is double layer cup shaped like structure .

2] Renal Tubule : This tubule contains Proximal Convulated tubule [PCT} , henle’s loop , distal Convulated tubule , Collecting duct etc  

• PCT : It is lined by cuboidal epithelial cells bearing a brush border of mircrovilli .
• Loop of henle’s : It is “u” shaped and runs straight in the renal medulla .It has descending and ascending loop .
• DCT : It is convulated and is again present on cortex .
• Collecting Duct : They coverge and open into the renal pehles through medullary pyramids on the cachces .
• Urine formation : 1] glomerular filtration 2] Tubular reabsorption 3] Tubular secretion