RAAS Homeostatic System Quiz

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Questions and Answers

Which enzyme converts angiotensin 1 to angiotensin 2?

  • Renin
  • Kinase 2
  • Angiotensinogen
  • ACE (correct)

What triggers the release of renin?

  • Release of aldosterone
  • Vascular and cardiac hypertrophy
  • Drop in renal blood flow (correct)
  • Increase in Na+ in renal tubules

Which receptor type does angiotensin 2 stimulate to release aldosterone?

  • SNS
  • AT1R (correct)
  • GPCR
  • AT2R

What is the primary effect of angiotensin 2?

<p>Vasoconstriction (B)</p> Signup and view all the answers

Where does angiotensin converting enzyme (ACE) primarily act?

<p>Lungs (A)</p> Signup and view all the answers

What is the source of angiotensinogen?

<p>Liver (B)</p> Signup and view all the answers

Which factor triggers the release of aldosterone?

<p>Decrease in Na+ in renal tubules (D)</p> Signup and view all the answers

What is the role of angiotensin 4?

<p>Cognition (B)</p> Signup and view all the answers

What is the primary function of angiotensin 2?

<p>Inducing vasoconstriction and increasing peripheral vascular resistance (C)</p> Signup and view all the answers

Where is angiotensin converting enzyme 2 (ACE2) predominantly found?

<p>In the lungs (C)</p> Signup and view all the answers

What triggers the release of renin?

<p>Drop in renal blood flow/blood pressure (C)</p> Signup and view all the answers

Which enzyme hydrolyses angiotensinogen to produce angiotensin 1?

<p>Renin (C)</p> Signup and view all the answers

What is the role of angiotensin 4?

<p>Role unknown: cognition, cardiovascular, renal (C)</p> Signup and view all the answers

Which receptor type does angiotensin 2 primarily stimulate to release aldosterone?

<p>Angiotensin 2 type 1 receptors (AT1R) (B)</p> Signup and view all the answers

What triggers the release of aldosterone?

<p>Stimulation by angiotensin 2 (D)</p> Signup and view all the answers

Where does angiotensin 2 type 2 receptors (AT2R) primarily exert their effects?

<p>In the brain (B)</p> Signup and view all the answers

Which enzyme hydrolyses angiotensinogen to produce angiotensin 1?

<p>Renin (C)</p> Signup and view all the answers

Where is angiotensin converting enzyme 2 (ACE2) predominantly found?

<p>Lungs (A)</p> Signup and view all the answers

What is the primary function of angiotensin 2?

<p>Vasoconstriction and release of aldosterone (D)</p> Signup and view all the answers

Which factor triggers the release of aldosterone?

<p>Increase in Na+ in renal tubules (B)</p> Signup and view all the answers

What triggers the release of renin?

<p>Drop in renal blood flow/blood pressure (A)</p> Signup and view all the answers

Which receptor type does angiotensin 2 primarily stimulate to release aldosterone?

<p>Angiotensin 2 type 1 receptors (AT1R) (D)</p> Signup and view all the answers

What is the role of angiotensin 4?

<p>CV function (C)</p> Signup and view all the answers

Which enzyme converts angiotensin 1 to angiotensin 2?

<p>ACE (A)</p> Signup and view all the answers

Flashcards

What does ACE do?

Converts angiotensin 1 to angiotensin 2.

What triggers renin release?

A decrease in renal blood flow.

Which receptor does angiotensin 2 stimulate?

AT1R.

Primary effect of angiotensin 2?

Vasoconstriction.

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Where does ACE primarily act?

Lungs.

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Source of angiotensinogen?

Liver.

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Factor triggering aldosterone release?

Decrease in Na+ in renal tubules.

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Role of angiotensin 4?

Potentially cognition, cardiovascular, renal regulation.

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What is primary function of angiotensin 2?

Inducing vasoconstriction and increasing peripheral vascular resistance

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Where is ACE2 predominantly found?

In the lungs.

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Enzyme that hydrolyzes angiotensinogen?

Renin.

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Which receptor stimulates aldosterone release?

Angiotensin 2 type 1 receptors (AT1R).

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Where do AT2R exert effects?

In the brain.

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What is the primary function of angiotensin 2?

Vasoconstriction and release of aldosterone.

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