EXCRETORY SYSTEM

3 FUNCTIONS OF THE EXCRETORY SYSTEM

• REMOVES WASTES FROM YOUR BLOOD.

• MAINTAINS THE pH OF YOUR BLOOD.

• REGULATES THE AMOUNT OF WATER IN YOUR BLOOD.

WASTE REMOVED BY EXCRETORY SYTEM

• METABOLIC WASTES THAT ARE MADE WHEN THE CELLS PERFORM THEIR JOBS.

PARTS OF THE EXCRETORY SYSTEM

• KIDNEYS

• URETERS

• BLADDER

• URETHRA

KIDNEYS

• PAIR OF ORGANS IN THE ABDOMINAL AREA.

• THEY ARE USED TO FILTER BLOOD AND PRODUCE URINE.

UREA

• WASTE PRODUCT OF BLOOD

• MADE FROM PROTEIN DIGESTION.

WASTE PRODUCTS

• BESIDES UREA, SALT IS ALSO A WASTE PRODUCT.

URINE

• FORMED IN THE KIDNEYS

• CONSISTS MOSTLY OF WATER BUT ALSO CONTAINS UREA, SALT, AND OTHER WASTES.

URETERS

• TUBES THAT CARRY URINE TO THE BLADDER FROM THE KIDNEYS.

BLADDER

• STORAGE FOR URINE

• AN AVERAGE ADULT BLADDER CAN HOLD ABOUT 1.5- 2 CUPS OF URINE

URETHRA• THE TUBE URINE IS EXPELLED

THROUGH

NEPHRONS

• TINY FILTRATION UNITS INSIDE THE KIDNEYS

• THEY FILTER IMPURITIES OUT OF THE BLOOD AND RETURN THE PURIFIED BLOOD TO THE BODY.