Z lines
A) are formed by the T tubules
B) extend down the middle of the I band
C) are formed by the cross bridges
D) are the thin filaments
E) extend down the middle of the sarcomere
Correct Answer:
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Q8: The region between two Z lines is
Q11: The functional unit of skeletal muscle is
Q12: Thick filaments in skeletal muscle are composed
Q13: The I band of the sarcomere is
Q14: Identify the characteristic(s) shared by all types
Q16: The striated appearance of skeletal muscle is
Q17: The smallest unit of contraction within a
Q18: Myosin is
A) spherical
B) attached to tropomyosin
C) a
Q19: Order the following muscle cell components from
Q20: Muscle fibers develop tension by
A) contraction of
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