2.75 describe the role of ADH in regulating the water content of the blood

Hypothalamus – part of the brain responsible for regulating bodily functions. It controls the production of ADH (Anti diuretic hormone) and other hormones in the pituitary gland

Too much water:

  1. Hypothalamus detects too much water
  2. Pituitary gland releases less ADH
  3. Kidneys remove less water from blood
  4. Therefore, more water is lost in the urine, urine becomes less concentrated
  5. Blood level turns to normal

Too little water:

  1. Hypothalamus detects too little water
  2. Pituitary gland releases ADH
  3. Kidneys remove water
  4. More water is lost in the urine
  5. Person feels thirsty, drinks more and blood returns back to normal
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