What stimulus causes the release of renin?
A. Low blood oxygen
B. Low blood pressure
C. High blood pressure
D. Low blood sodium
Answer: B
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The most important factor regulating the mammalian ECF volume and blood pressure is
a. vasopressin. b. thirst. c. increase of Na+ ions in ECF. d. renin-angiotensin-aldosterone system. e. decrease of K+ ions in ECF.
End-stage renal disease occurs when:
A) the initial signs of azotemia are present. B) the kidneys have lost all ability to function. C) urine output falls to less than 500 mL/day. D) the glomerular filtration rate is increased.
How would a torn calcaneal tendon affect movement at the ankle?
A) It would make flexion difficult. B) It would make medial rotation difficult. C) It would make extension difficult. D) It would make lateral rotation difficult. E) It would make pronation difficult.
What is the cardiac output of a person with a stroke volume of 60 mL and a heart rate of 90 beats/min?
A. 2.1 L B. 4.2 L C. 5.0 L D. 5.4 L