Nephron:Life Process Most Expected Question Class 10 th |Most Repeated question

Nephron:Life Process Most Expected Question Class 10 th |Most Repeated question

#nephron #nephrology #nephronstructureand function
#nephroneasydiagram



The nephron is the basic structural and functional unit of the kidney. Its primary role is to filter blood and form urine, which is essential for maintaining the body's fluid balance, electrolyte levels, and waste removal. Each kidney contains approximately 1 to 1.5 million nephrons.

Structure of the Nephron

The nephron is made up of the following main parts:

1. Renal Corpuscle (Filters Blood): hai

Glomerulus: A network of capillaries where blood filtration begins.

Bowman's Capsule: A cup-shaped structure surrounding the glomerulus that collects the filtered fluid (filtrate).



2. Renal Tubule (Processes Filtrate):

Proximal Convoluted Tubule (PCT): Reabsorbs water, glucose, amino acids, and ions back into the blood.

Loop of Henle: Divided into descending and ascending limbs; concentrates the urine by reabsorbing water and salts.

Distal Convoluted Tubule (DCT): Further fine-tunes the composition of urine through selective secretion and reabsorption of ions.



3. Collecting Duct:

Receives processed filtrate (urine) from multiple nephrons.

Plays a key role in water reabsorption under the influence of hormones like antidiuretic hormone (ADH).




Functions of the Nephron

1. Filtration: Blood plasma is filtered in the glomerulus.


2. Reabsorption: Useful substances like water, glucose, and ions are reabsorbed into the bloodstream.


3. Secretion: Waste products and excess ions are secreted into the tubules.


4. Excretion: The final urine is excreted, containing metabolic waste products like urea, creatinine, and toxins.