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Nerve impulses are
sent to the muscle
fibers.
Reorder the following to describe how muscles contract.
Myosin heads attach
to actin filaments
Myosin heads pull
Myosin head
detaches and resets
(power stroke) on
the actin filament
1
2
3
4
Samaya
RESET
SKIP
Sarcomeres get
shorter (muscle
contracts)
5
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May 6 10:24



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