Question 1

(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.

Answer

C