Important Hormonal Regulators of the Kidney - Renal Flash Cards - Anatomy & Physiology

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Question Answer Link
Which hormone is excreted by the juxtaglomerular cells in response to a fall in blood pressure? Renin Link
What does ACE do? Converts angiotensin 1 to angiotensin 2 Link
Which receptors does angiotensin 2 act on to cause the release of aldosterone?

How does angiotensin 2 effect GFR?

Contracts the efferent arteriole to increase GFR when blood pressure drops
What three things stimulate the release of aldosterone?

  • Corticotropin (ACTH)
  • Angiotensin 2
  • K+
What are its effects on sodium? Increases the reabsorption of sodium from the distal tubule and collecting duct Link
How does it achieve these effects? Increases the synthesis of sodium transporters and increases the supply of ATP to them by altering gene transcription Link
Where is atrial natriutretic peptide secreted from? Atrial walls Link
Whats it's effect? Increases the excretion of water by reducing the reuptake of sodium. Link