The thick contractile protein of a muscle cell is known as ____.

Name: The thick contractile protein of a muscle cell is known as ____.
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Myosin is the thick contractile protein found in muscle cells. Actin is the thin contractile protein that interacts with myosin during muscle contractions. Troponin and tropomyosin are regulatory proteins that are also involved in muscle contractions, but are not the thick contractile proteins.

The Thick Contractile Protein of a Muscle Cell Is Known