An increase in the number of cells is
A. reproduction.
B. growth.
C. differentiation.
D. metabolism.
E. organization.
B
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The iliopsoas, sartorius, and rectus femoris all move the femur. They are in the
A. anterior group. B. posterior group. C. medial group. D. lateral group.
In cardiac muscle cells, the release of Ca2+ through L-type Ca2+ channels depolarizes the sarcoplasmic reticulum and inhibits the release of any additional Ca2+ necessary for excitation-contraction coupling.
Answer the following statement true (T) or false (F)
Muscle fiber types can be changed in response to
A) Activity levels. B) Temperature. C) Thyroid hormone levels. D) All of the above
An electromyogram is ________
A) a graphic representation of the voltage waveforms associated with muscle contraction B) a visual recording of the force generated by muscle contraction C) an instrument used to record the electrical activity of muscles D) a device used to measure the force of muscle activity