Biology, 01.09.2019 00:30 craincrew5239

What is urinary system and what are the organs involved in urine formation. how is urine formed in human body. what is nephron

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The urinary system or the Renal systems regulates or takes out waste from the blood, maintain blood pressure, and controls the ion exchange process.

The parts of urinary system includes:

Kidneys UretersBladderUrethera

Formation of urine :

When the blood passes through the kidney, it filters the blood. This is a 3 step process:

1) Glomerus filtration: This is the place where formation of urine starts. In glomerus, the water and solute from tiny capillaries and enter the capsule of the glomerus.

2) The tubular re-absorption: Most of the water and solute gets reabsorbed through this part

3) Tubular secretion: Extracellular fluid molecules get transferred into the nephron, these secretions get discarded out of the body containing mainly creatinine, urea, uric acid, K+ and H+ ions

NEPHRON :

The simplest unit of kidney and its the basic unit that filter the blood. One kidney has approximately 1. 5 million nephrons!

Answer from: ashtonbillups

Explanation:

Urine formation in human body takes place mostly in three main stages. They are

‌Filtration‌Reabsorbtion‌SecretionFiltration:- The Glomerulus filters water and other substances from the bloodstream. As blood flows through the glomerulus, blood pressure pushes water and solutes from the capillaries into the capsule through a filtration membrane. This glomerular filtration begins the urine formation process.Reabsorption:- Reabsorption moves nutrients and water back into the bloodstream. The glomerulus filters water and small solutes out of the bloodstream. The resulting filtrate contains waste, but also other substances the body needs: essential ions, glucose, amino acids, and smaller proteins.Secretion:- Waste ions and hydrogen ions secreted from the blood complete the formation of urine. At the same time, waste ions and hydrogen ions pass from the capillaries into the renal tubule. This process is called secretion. The secreted ions combine with the remaining filtrate and become urine.

The kidney filters only unwanted material from the blood and produce urine to excrete them. The above mentioned processes ensures that only unwanted and excess water are produced from human body in the form of urine.

Answer from: Quest

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explanation:

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Answer from: Quest

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