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Stretching a Skeletal Muscle Beyond Rest Length Reduces the Force

Question 4

Multiple Choice

Stretching a skeletal muscle beyond rest length reduces the force of contraction because of:


A) Increased Ca++ sensitivity of actin-myosin interaction.
B) Increased Ca++ influx through stretch-activated channels.
C) Decreased actin-myosin overlap.
D) Decreased Ca++ uptake by the SR.
E) Decreased intracellular pH.

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