A myofibril is the
A) cell membrane of a muscle fiber.
B) cytoplasm of muscle cells.
C) structural and functional unit of the skeletal muscle cell.
D) contractile thread that extends the length of the muscle fiber.
E) protein strand composed of actin.
Correct Answer:
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Q41: Which of the following statements regarding the
Q46: The model that describes the contraction of
Q47: Which of the following situations occurs in
Q49: A myofilament is the
A)cell membrane of a
Q50: Which of the following changes have the
Q51: When repolarization of the cell membrane is
Q53: The electrical properties of cells are the
Q54: An action potential
A) occurs when the local
Q55: Channels that open or close in response
Q57: Which of the following is true during
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