Which type of drug would be useful in dilating the pupils for an examination of the retina?
A) alpha-1 receptor inhibitor
B) beta-3 receptor mimic
C) beta-1 receptor mimic
D) muscarinic receptor inhibitor
D
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The ability to form concentrated urine depends on the functions of the
A) proximal convoluted tubule. B) distal convoluted tubule. C) collecting duct. D) nephron loop (loop of Henle). E) nephron loop, distal convoluted tubule and the collecting duct.
Which of the following organs help maintain the proper pH of body fluids?
a. kidneys by forming urine b. lungs by exhaling carbon dioxide c. spleen by filtering the blood d. both A and B above
Explain why chemical reactions in the body are often irreversible.
What will be an ideal response?
Which of the following cell types cannot renew themselves by division?
A) liver and heart B) nerve and muscle C) skin and nerve D) gastrointestinal and skin