Structure and functioning ot nephron....Plzz answer me...
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Answer:
Breif explanation about function and structure of nephron.
Explanation:
Function of nephron.
•The blood enters the kidney through the renal artery, which branches into many capillaries associated with glomerulus.
•The water and solute are transferred to the nephron at Bowman’s capsule.
•In the proximal tubule, some substances such as amino acids, glucose, and salts are selectively reabsorbed and unwanted molecules are added in the urine.
•The filtrate then moves down into the loop of Henle, where more water is absorbed.
•From here, the filtrate moves upwards into the distal tubule and finally to the collecting duct. Collecting duct collects urine from many nephrons.
•The urine formed in each kidney enters a long tube called ureter. From ureter, it gets transported to the urinary bladder and then into the urethra.
Structure of nephron:
The mammalian nephron is a long tube-like structure, its length varying from 35–55 mm long. At one end, the tube is closed, folded and expanded, into a double-walled, a cuplike structure called the Bowman’s capsule or renal corpuscular capsule, which encloses a cluster of microscopic blood vessels called the glomerulus. This capsule and glomerulus together constitute the renal corpuscle.
The structure of nephron comprises two major portions:
*Renal Tubule.
*Renal Corpuscle.
•Renal tube - The renal tubule is a long and convoluted structure that emerges from the glomerulus.
•Renal Corpuscle - The renal corpuscle consists of a glomerulus surrounded by a Bowman’s capsule. The glomerulus arises from an afferent arteriole and empties into an efferent arteriole. The smaller diameter of an efferent arteriole helps to maintain high blood pressure in the glomerulus.