Kidneys

Question 1

Antidiuretic Hormone

Answer 1

Works on collecting duct tubules to enlarge or restrict therefore causing water to move into interstitial space concentrating or out of interstitial space diluting urine

Question 2

Erythropoietin (EPO)

Answer 2

Stimulates bone marrow to produce red blood cells in response to tissue hypoxia.
Triggered by decrease O2 to kidney cells

Question 3

Renin

Answer 3

Converts angiotensin 1 to 2 causing vasoconstriction and stimulation of adrenal cortex to release aldosterone

Question 4

Vit D

Answer 4

Creates absorption of calcium and phosphorus in small intestines