Anti-diuretic Hormone

• Anti-diuretic hormone/ADH/vasopressin:

  • diuresis = urine formation
  • action of ADH is to:
  • conserve blood volume - ADH is released in large amounts during volume/pressure crises e.g. immediately post haemorrhage
  • acts on arterioles, causing profound vasoconstriction -> increasing total peripheral resistance -> increasing blood pressure