The secondary curves of the vertebral column are the
A. cervical and lumbar curvatures.
B. thoracic and sacral curvatures.
C. cervical and thoracic curvatures.
D. lumbar and sacral curvatures.
Answer: A
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A) average muscles; performance is based solely on training. B) more intermediate fibers than average. C) more fast twitch fibers than average. D) more slow twitch fibers than average. E) None of the answers are correct.
Chemical communication between the nucleus and the cytosol occurs through ________.
Fill in the blank(s) with the appropriate word(s).
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