Question

Describe the structure and functioning of nephrons​

Answer 1

Answer:

Nephrons are the microscopic structural and functional unit of the kidney. Nephrons are composed of a renal corpuscle and a renal tubule. The renal corpuscle consists of a tuft of capillaries called a glomerulus and an encompassing Bowman's capsule.

Explanation:

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Answer 2

: Required Answer

$\longrightarrow$ Nephrons are the filtration units of the kidney which are large in numbers. Some substances in the initial filtrate, such as glucose, amino acids, salts and a major amount of water, are selectively re-absorbed as the urine flows along the tube.

➳ Main components of Nephrons are

➳ Glomerulus

➳ Bowman’s capsule

➳ Long renal Tube

➳ Structure of Nephron

➢ Functioning 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.