Because actin and its regulatory proteins form narrower strands, actin…

Question

Because actin and its regulatory proteins form narrower strands, actin is called the:

Accepted Answer

A. Thin filament

1. Compare the bulk of the two filament types.
2. Actin plus troponin and tropomyosin is slimmer than myosin.
3. Actin is therefore the thin filament.
_Source: OpenStax Anatomy and Physiology 2e, Chapter 10, Muscle Tissue._

Answer

Thick filament

Answer

Third filament

Answer

Thorn filament

Because actin and its regulatory proteins form narrower strands, actin is called the:

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