Hormone Regulation of Kidneys

1
Hormone Regulation of Kidneys

• Antidiuretic Hormone (ADH)
• Enhances fluid retention by increasing water
  permeability in distal tubules and collecting
  duct
• Made in hypothalamus and stored in the pituitary
  gland
• Renin-angiontensin-aldosterone system (RAAS)
• Tissue near blood supply for glomerulus responds
  to decreasing blood pressure by releasing renin
  into blood
• Angiotensis becomes angiotensin II with the aide
  of renin
• Angiotensin II stimulates the release of
  aldostersone

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ADH Regulation
3
RAAS Regulation
4
Explain why the ADH and RAAS regulation are not
considered redundant.
5
Hormone Regulation of Kidneys

• Atrial natriuretic factor (ANF)
• Hormone released from walls of atria that lowers
  blood volume and pressure
• Works as checks and balances with ADF and RAAS
• Still undergoing research

6
The Amazing Kidney!

• The vampire bat is an example of how kidney
  regulation allows organisms to survive!