What is the most potent vasoconstricting paracrine yet identified?
a. cyclic GMP
b. acetylcholine
c. nitric oxide
d. dopamine
e. endothelin
e
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A patient is heterozygous for sickle-cell anemia. Explain why the patient would have few or no symptoms of sickle-cell anemia
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Which of the following is NOT a ligament associated with the knee joint?
A) tibial collateral ligament B) radial collateral ligament C) anterior cruciate ligament (ACL) D) posterior cruciate ligament (PCL)
What initiates the micturition reflex?
A) The external urethral sphincter relaxes. B) Stretch receptors in the wall of the urinary bladder signal the sacral region of the spinal cord. C) Parasympathetic efferent fibers stimulate the contraction of the detrusor muscle. D) The internal urethral sphincter relaxes.
Athletes who train at high altitudes increase their red blood cell count, which increases their oxygen supply during exercise. Increased oxygen supply results in
A. reduced ATP consumption. B. increased use of myokinase. C. longer aerobic respiration. D. increased glycolysis. E. longer anaerobic respiration.