A&P Key Terms 25 Urinary System

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A&P Key Terms 25 Urinary System
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68 Pages
2015
English US
Educational Materials



Sample Questions from the A&P Key Terms 25 Urinary System Key Terms

Question: angiotensin I

Choices:

protein produced by the enzymatic action of renin on angiotensinogen; inactive precursor of angiotensin II

Question: cortical nephrons

Choices:

nephrons with loops of Henle that do not extend into the renal medulla

Question: angiotensin-converting enzyme

Choices:

(ACE) enzyme produced by the lungs that catalyzes the reaction of inactive angiotensin I into active angiotensin II

Question: Bowman's capsule

Choices:

cup-shaped sack lined by a simple squamous epithelium (parietal surface) and specialized cells called podocytes (visceral surface) that participate in the filtration process; receives the filtrate which then passes on to the PCTs

Question: brush border

Choices:

formed by microvilli on the surface of certain cuboidal cells; in the kidney it is found in the PCT; increases surface area for absorption in the kidney

Question: calyces

Choices:

cup-like structures receiving urine from the collecting ducts where it passes on to the renal pelvis and ureter

Question: aquaporin

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protein-forming water channels through the lipid bilayer of the cell; allows water to cross; activation in the collecting ducts is under the control of ADH

Question: anatomical sphincter

Choices:

smooth or skeletal muscle surrounding the lumen of a vessel or hollow organ that can restrict flow when contracted

Question: angiotensin II

Choices:

protein produced by the enzymatic action of ACE on inactive angiotensin I; actively causes vasoconstriction and stimulates aldosterone release by the adrenal cortex

Question: angiotensinogen

Choices:

inactive protein in the circulation produced by the liver; precursor of angiotensin I; must be modified by the enzymes renin and ACE to be activated

Question: anuria

Choices:

absence of urine produced; production of 50 mL or less per day

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Source:  Human Body OpenStax College. Anatomy & Physiology, Download for free at http://cnx.org/contents/14fb4ad7-39a1-4eee-ab6e-3ef2482e3e22@7.25
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