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During the Latent Period of an Isometric Twitch

Question 18

Multiple Choice

During the latent period of an isometric twitch,


A) myosin hydrolyzes ATP and releases from actin.
B) Ca2+ binds to troponin C.
C) ryanodine receptors open and conduct Ca2+ into the SR.
D) tropomyosin moves to block myosin-binding sites on actin.

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