Clinical manifestations of chronic renal failure include all of the following, EXCEPT:
A) dehydration.
B) hyperkalemia.
C) hypotension.
D) QT prolongation.
Answer: A) dehydration.
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The left ventricle has a thicker wall than the right ventricle because the left ventricle has to pump blood against a higher pressure.
Answer the following statement true (T) or false (F)
Several of the events that occurred between the time that a physician struck a patient's patellar tendon with a rubber hammer and the time the quadriceps femoris contracted (knee-jerk reflex) are listed below:
1. increased frequency of action potentials in sensory neurons 2. stretch of the muscle spindles 3. increased frequency of action potentials in the alpha motor neurons 4. stretch of the quadriceps femoris 5. contraction of the quadriceps femoris Which of these lists most closely describes the sequence of events as they normally occur? A) 4,1,2,3,5 B) 4,1,3,2,5 C) 1,4,3,2,5 D) 4,2,1,3,5 E) 4,2,3,1,5
Which of the following is not secreted by the pancreas?
A. Somatotropin (growth hormone) B. Insulin C. Somatostatin (growth hormone-inhibiting hormone) D. Glucagon E. Gastrin
Which of the following is mismatched?
A. M line - middle of the H zone B. Actin myofilaments - thin myofilaments C. Z disk - structure between adjacent sarcomeres D. Myosin myofilaments - thin myofilaments E. I band - contains only actin