The H zone
A) is the area within the middle of the A band where the thin filaments do not reach
B) shortens or disappears during contraction
C) contains only thick filaments
D) does not contain cross bridges
E) is all of the above
Correct Answer:
Verified
Q27: The T tubules
A)store Ca₂₊
B)provide a means of
Q28: Which of the following are involved in
Q29: Cross bridge interaction between actin and myosin
Q30: Which of the following changes in banding
Q31: According to the sliding-filament mechanism, the
A)A bands
Q33: Foot proteins
A)span the gap between a lateral
Q34: During excitation-contraction coupling,
A)the action potential travels down
Q35: During muscle contraction,
A)the Z lines move farther
Q36: The T tubules
A)store Ca₂₊
B)provide a means of
Q37: The sarcoplasmic reticulum stores _ when a
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