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Urogenital:

KIDNEYS

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What is the Urogenital System? • DEFINITION: Relating to the urinary and genital organs

• FUNCTION: excretion and reproduction

Kidney & Excretion Organs 1.  Kidney 2.  Ureter 3.  Bladder 4.  Urethra

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Kidney Structure

What does the Kidney do? • Filtration, Reabsorption, Secretion Excretion

What does the Kidney do?

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What does the Kidney do? 1. Blood enters through renal artery 2. Blood pressure forces some blood

plasma and small particles into the surrounding nephrons— (this is called the nephric filtrate). •  Large particles such as blood cells and

proteins remain in capillaries. 3. The kidney filters out wastes from

metabolism – urea, uric acid, creatnine.

What does the Kidney do? 4.  Only materials needed by the

body return to the bloodstream through diffusion •  Water, glucose, amino acids, salts

5.  The remaining filtrate is sent through the ureters into the bladder

6.  Excretion occurs through the urethra (male and female differ in these structures)