Thick filaments are composed primarily of ___________, whereas thin filaments consist of ___________.
A) Z discs; T tubules
B) actin; myosin
C) T tubules; Z discs
D) myosin; actin
Correct Answer:
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Q25: What would happen to a person who
Q26: Earthworms and slugs move by
A) stretching their
Q27: In cardiac muscle
A) calcium enters the cell
Q28: Fast-twitch muscle fibers, such as those that
Q29: Where are the largest motor units in
Q31: Smooth muscle
A) contracts when stretched.
B) does not
Q32: _muscle constricts arteries when blood pressure drops
Q33: A muscle fiber generates maximum contractile force
Q34: Which of the following is TRUE of
Q35: Both smooth and cardiac muscle fibers
A) are
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