Myosin strands with their many heads carry more mass, so myosin is called the:
AThreaded filament
BThick filament
CThin filament
DThermal filament
Answer & Solution
Correct answer: B. Thick filament
1. The heads add considerable bulk along the strand.
2. Compared with actin it is the heavier of the two.
3. Myosin is the thick filament.
_Source: OpenStax Anatomy and Physiology 2e, Chapter 10, Muscle Tissue._
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