Skeletal muscle is described as ________
A) fibrous and containing ground substance
B) striated and involuntary
C) striated and voluntary
D) nonstriated and involuntary
E) nonstriated and voluntary
C
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During the first 12 weeks of resistance training, strength gains are due primarily to what?
A. improved innervation of the muscle B. increase in cross-sectional area C. both A and B D. none of the above
Bending your head back until it hurts is an example of ________.
A) flexion B) extension C) hyperextension D) circumduction
Myofibrils are made primarily of
A) actin and myosin. B) epimysium. C) ATP and ADP. D) troponin. E) tropomyosin.
Which statement is true about intercostal nerves?
a. They are formed from the posterior rami of spinal nerves. b. They form a thoracic plexus of nerves. c. They originate from the thoracic part of the spinal cord. d. They innervate the lower limb.