The striated appearance of skeletal muscle is due to the
A) regular arrangement of the T tubules running transversely through the muscle fiber.
B) presence of the Z lines extending down the middle of the I bands.
C) presence of gap junctions.
D) regular arrangement of the motor units.
E) none of these answers.
Correct Answer:
Verified
Q8: The region between two Z lines is
Q9: Order the following muscle cell components from
Q15: Muscle fibers develop tension by
A) contraction of
Q17: Sarcomeres are arranged end to end as
A)
Q19: Thin filaments in skeletal muscle are composed
Q21: Of the step in excitation-contraction below, which
Q22: The sarcolemma
A) is the muscle cell plasma
Q24: The T tubules
A) form the Z lines.
B)
Q25: Binding of _ to myosin permits cross-bridge
Q37: An action potential rapidly spreads to the
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