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Renin-angiotensin system: Quiz


Question 1: The ________ (GFR) is thus maintained, and blood filtration can continue despite lowered overall kidney blood flow.
Anion gapRenal physiologyNephronRenal function

Question 2: Throughout the body, it is a potent ________ of arterioles.
AngiotensinBlood pressureVasodilationVasoconstriction

Question 3: If the perfusion of the juxtaglomerular apparatus in the kidney's macula densa decreases, then the juxtaglomerular cells release the ________ renin.
ProteinEnzyme inhibitorEnzymeCofactor (biochemistry)

Question 4: Aldosterone acts on the tubules (e.g., the distal convoluted tubules and the cortical collecting ducts) in the kidneys, causing them to reabsorb more ________ and water from the urine.

Question 5: In the ________, it constricts glomerular arterioles, having a greater effect on efferent arterioles than afferent.
Endocrine systemLiverKidneyUrinary system

Question 6: Renin cleaves a zymogen, an inactive peptide, called ________, converting it into angiotensin I.
Renin-angiotensin systemAngiotensinVasodilationHuman physiology

Question 7: ADH also acts on the ________ to increase an individual's appetite for salt, and to stimulate the sensation of thirst.
White matterCentral nervous systemGrey matterNeuron

Question 8: Angiotensin I is then converted to angiotensin II by angiotensin-converting enzyme (ACE)[4] which is found mainly in lung ________.
CapillaryArteryHeartCirculatory system

Question 9: As with most other capillary beds in the body, the constriction of afferent arterioles increases the arteriolar resistance, raising systemic ________ and decreasing the blood flow.
VasodilationBlood pressureCirculatory systemRenin-angiotensin system

Question 10: ________
Amino acidAngiotensin II receptor antagonistACE inhibitorDiscovery and development of angiotensin receptor blockers


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