Question

What is Formation of Urine?

Answer 1

Answer:

The kidneys filter unwanted substances from the blood and produce urine to excrete them. There are three main steps of urine formation: glomerular filtration, reabsorption, and secretion. These processes ensure that only waste and excess water are removed from the body.Urine is formed in three steps: filtration, reabsorption, and secretion.It is primarily composed of water and urea. Urea is a special nitrogenous waste compound that the body must routinely remove. Urine formation occurs in the kidney in three stages: filtration, reabsorption, and secretion.The renal medulla contains the renal pyramids, where urine formation takes place. Urine passes from the renal pyramids into the renal pelvis. This funnel-shaped structure occupies the central cavity of each kidney and then narrows as it extends out to join the ureter. Urine drains from the renal pelvis into the ureter.Excretion of excess water leads to a formation of hypotonic urine, excretion of excess solutes results in a formation of hypertonic urine.Glomerular filtration is the first step in urine formation and constitutes the basic physiologic function of the kidneys. It describes the process of blood filtration in the kidney, in which fluid, ions, glucose, and waste products are removed from the glomerular capillaries.The urine passes from the kidneys through the ureter into the urinary bladder, where it is stored.There are four basic processes in the formation of urine starting with plasma.

Filtration.

Reabsorption.

Regulated reabsorption, in which hormones control the rate of transport of sodium and water depending on systemic conditions, takes place in the distal tubule and collecting duct.

Secretion.

Excretion.

Explanation:

Answer 2

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What is Formation of Urine?

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Daily in 24 hours we eliminate about 1 litre to 2 litre of urine, from our body. This urine is made by the filtration of the blood. The nephron is responsible for the blood filtration.

✒️Formation of urine involve 3 stages :-

1. Ultrafiltration
2. Tubular Reabsorption
3. Secretion