When muscle fibers are stimulated so frequently they do not have an opportunity to relax, they are experiencing:
A) unfused or incomplete tetanus. B) a twitch.
C) fused or complete tetanus. D) wave summation.
Answer: C
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A. sciatic B. radial C. saphenous D. femoral E. obturator
Which of the following is a function of skeletal muscle?
A) maintain posture B) produce movement C) support soft tissues D) generate heat E) All of the answers are correct.
Which of the following is the most important role of meiosis in sexual reproduction?
A. It changes the genetic composition of each chromosome. B. It produces at least one gamete that is mobile. C. It ensures that each daughter cell doubles the number of chromosomes. D. It prevents the chromosome number from doubling in each generation. E. It reduces the size of the gametes.
The _________ nerve carries parasympathetic fibers to the SA node.
a. hypoglossal b. facial c. accessory d. vagus