Regulation Of Water

Question 1

What happens when theres too little water in the blood

Answer 1

• Hypothalamus detects too little water in the blood.
• Pituitary gland releases lots of anti diuretic hormone.
• ADH is carried to the kidneys.
• High levels of ADH increases the permeability of the nephron.
• More water is reabsorbed back into the bloodstream.
• Blood water levels rise, less water in the urine.

Question 2

What happens when there is too much water in the blood.

Answer 2

• Hypothalamus detects too much water in the blood.
• Pituitary gland releases less Anti diuretic hormone into the blood.
• Less ADH causes a decrease in the permeability of the nephron.
• Less water reabsorbed into the blood stream, blood water levels drop.