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Hormonal Regulation of the GFR - lecture

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Hormonal Regulation of the GFR - lecture

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Questions and Answers

What are the two hormones that regulate the GFR?

Adrenaline and dopamine

Insulin and glucagon

Renin–angiotensin-aldosterone system (RAAS) and Atrial Natriuretic peptide (ANP (correct)

Melatonin and serotonin

What causes the juxtaglomerular complex (JGC) to release renin?

Increase in blood pressure at glomerulus due to increase in blood volume

Stimulation of juxtaglomerular cells by parasympathetic innervation

Decline in osmotic concentration of tubular fluid at macula densa (correct)

Increase in systemic pressures

What does angiotensin II do in the nephron?

Dilates efferent arterioles of nephron, decreasing glomerular pressures and filtration rates

Inhibits reabsorption of Na+ ions and water at PCT

Stimulates secretion of aldosterone by adrenal cortex in the PCT and collecting tubules – increase Na+, Cl-, water reabsorption, loss K+ (correct)

Inhibits thirst

What is the function of renin in the Renin–Angiotensin-Aldosterone System?

Converts angiotensinogen to angiotensin I Signup and view all the answers

What triggers the release of antidiuretic hormone (ADH)/Vasopressin?

Angiotensin II activation Signup and view all the answers

What does atrial natriuretic peptide (ANP) do?

Inhibits secretion of aldosterone by adrenal cortex in the DCT and collecting tubules – decrease Na+, Cl-, water reabsorption, increase K+ Signup and view all the answers

Which of the following is not a stimulus that causes the juxtaglomerular complex (JGC) to release renin?

Increase in systemic pressures Signup and view all the answers

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