Excretory Products and their Elimination — BIOLOGY STD 11 Science — Question
Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYExcretory Products and their Elimination3 Marks
Question
Describe the structure and function of a renal corpuscle.
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Answer
Renal corpuscle:
The renal tubule or the nephron begins as a double walled cup-like structure, called Bowman's capsule.
The hollow of the cup is occupied by glomerulus, the a capillary network formed by the afferent arteriole.
The Bowman's capsule alongwith the glomerulus, is known as Malpighian or renal corpuscle.
The blood flowing through the glomerulus is filtered, which is the first step in urine formation.
The filtration membrane is formed by (i) the endothelium of glomerular capillaries, (ii) the epithelium of Bowman's capsule and (iii) the basement membrane between the above two.
The filtrate passes into the lumen of the Bowman's capsule and then reaches the proximal convoluted tubule.
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