24 Questions
Which enzyme converts angiotensin 1 to angiotensin 2?
ACE
What triggers the release of renin?
Drop in renal blood flow
Which receptor type does angiotensin 2 stimulate to release aldosterone?
AT1R
What is the primary effect of angiotensin 2?
Vasoconstriction
Where does angiotensin converting enzyme (ACE) primarily act?
Lungs
What is the source of angiotensinogen?
Liver
Which factor triggers the release of aldosterone?
Decrease in Na+ in renal tubules
What is the role of angiotensin 4?
Cognition
What is the primary function of angiotensin 2?
Inducing vasoconstriction and increasing peripheral vascular resistance
Where is angiotensin converting enzyme 2 (ACE2) predominantly found?
In the lungs
What triggers the release of renin?
Drop in renal blood flow/blood pressure
Which enzyme hydrolyses angiotensinogen to produce angiotensin 1?
Renin
What is the role of angiotensin 4?
Role unknown: cognition, cardiovascular, renal
Which receptor type does angiotensin 2 primarily stimulate to release aldosterone?
Angiotensin 2 type 1 receptors (AT1R)
What triggers the release of aldosterone?
Stimulation by angiotensin 2
Where does angiotensin 2 type 2 receptors (AT2R) primarily exert their effects?
In the brain
Which enzyme hydrolyses angiotensinogen to produce angiotensin 1?
Renin
Where is angiotensin converting enzyme 2 (ACE2) predominantly found?
Lungs
What is the primary function of angiotensin 2?
Vasoconstriction and release of aldosterone
Which factor triggers the release of aldosterone?
Increase in Na+ in renal tubules
What triggers the release of renin?
Drop in renal blood flow/blood pressure
Which receptor type does angiotensin 2 primarily stimulate to release aldosterone?
Angiotensin 2 type 1 receptors (AT1R)
What is the role of angiotensin 4?
CV function
Which enzyme converts angiotensin 1 to angiotensin 2?
ACE
Test your knowledge of the RAAS (Renin-Angiotensin-Aldosterone System) homeostatic system with this quiz. Explore the regulation of blood pressure, fluid volume, and electrolyte levels, and understand the roles of enzymes like renin and ACE. Identify the factors triggering renin release and deepen your understanding of this vital physiological process.
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