HUMAN EXCRETION

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PowerPoint Presentation: 

WELCOME

PowerPoint presentation on excretory system: 

PowerPoint presentation on excretory system

Human Excretion: 

Human Excretion Like other animals humans have a system that excretes Nitrogen wastes as Urea, salt, and water EXCRETORY SYSTEM : Kidneys, ureter , urethra, and bladder Functions of Kidneys - remove waste products from blood - maintain blood pH - control water content of blood

Nephrons: 

Nephrons Your kidneys are composed of 1 million cells called Nephrons . These long coiled tubes are where the blood is actually filtered and urine is produced

WORKING OF KIDNEY: 

WORKING OF KIDNEY Blood enters kidneys from renal artery Blood is filtered by passing through millions of nephrons Wastes pass through ureter to the bladder as urine Clean blood returns to body through renal vein Bladder stores urine and passes urine out of the body through the urethra

FORMATION OF URINE: 

FORMATION OF URINE

MOST EFFICIENT KIDNEYS: 

MOST EFFICIENT KIDNEYS Desert animals must be able to conserve moisture Most terrestrial animals must drink fresh water often; however the kangaroo rat does not need to drink water very often – its kidneys absorb every little drop of water

Kidney Failure: 

Kidney Failure If renal failure occurs, people must get their blood filtered through Dialysis.

GOUT: 

GOUT Is a disease where the human body accumulates Uric acid in the joints. Heredity, alcohol & kidney failure lead to this problem.

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Kidney Stone

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MADE BY:- GROUP 4 CLASS:- 10 A