What is the role of tropomyosin in skeletal muscles? A) Tropomyosin is the chemical that activates the myosin heads. B) Tropomyosin serves as a contraction inhibitor by blocking the actin binding sites on the myosin molecules. C) Tropomyosin is the receptor for the motor neuron neurotransmitter. D) Tropomyosin serves as a contraction inhibitor by blocking the myosin binding sites on the actin molecules.

What is the role of tropomyosin in skeletal muscles?
A) Tropomyosin is the chemical that activates the myosin heads.
B) Tropomyosin serves as a contraction inhibitor by blocking the actin binding sites on the myosin molecules.
C) Tropomyosin is the receptor for the motor neuron neurotransmitter.
D) Tropomyosin serves as a contraction inhibitor by blocking the myosin binding sites on the actin molecules.

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