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20 Cards in this Set

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Negative Feedback
Change triggers a response that counteracts the change
Urea
Ammonia combining with carbon dioxide
Excretion
Wastes
Hormones
Chemical messengers
Target Cells
Cells hormones affect
Kidneys
Main organs of the excretory system
Urine
Liquid made of water, urea, and other waste products
Ureter
Carries urine to the urinary bladder
Urinary Bladder
Sac that stores urine
Urthera
Where urine travels
Nephrons
Tubes that filter blood
Glomerulus
Beginning of the nephron
Dialysis
Treatment for kidneys
Hepatitis
Liver disease that is often caused by a virus
Cirrhosis
When liver is so scarred it can no longer function
Hypothalamus
Makes hormones that direct activites of many endocrine glands
Releasing Hormones
How the hypothalamus controls the piruaturity gland
Pituritary Gland
Secretes hormones that influence other glands and body functions
Thyroid
Secretes hormones that affect almost every tissue in the body
Adrenal Glands
Produce hormones in response to stress