What is involved in
muscle contraction?
A. Myofibrils in the muscle shorten and lengthen to...
Biology, 16.12.2021 01:00 alyahmarie00
What is involved in
muscle contraction?
A. Myofibrils in the muscle shorten and lengthen to make the
muscle contract and extend.
B. Actin and myosin come in and out of the cell to make it thicker
or thinner which changes its length.
C. The gap junctions between the cells pull them closer together
which shortens the muscle.
D. The extra nuclei trigger nerves to stiffen the muscles and make
them shorter.
Answers: 3
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