SPANGLER SCIENCE

Urinary System Notes
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EXCRETORY SYSTEM (URINARY)


FUNCTION: to rid the body of excess water and waste from blood.

  Balance salt levels


PARTS:

KIDNEYS- main organ for system.

        Filters watse and poison out of blood (all blood passes

        through) (1 liter or blood filtered per minute)

              After blood is fltered most goes back to the capillaries,

          some left in the kindneys- urine.

 

URETERS- tubes from kidneys to bladder.


BLADDER- holds urine until it leaves the body.

URETHRA- where urine leaves the body.


OTHER:

HYPOTHALAMUS- in the brain, maintins urine production.


LIVER- filters toxins out of the blood.


***different forms of excretion:

Sweat/Prespiratation-salt and water

Respiratory & Circulatory- excess CO2 and water

Digestive- undigested waste


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W.T. Eich Intermediate