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Joint between femur and acetabulum of pelvic girdle is

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Important Questions on Locomotion and Movement

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The joint between femur and tibia-fibula is
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_____acts as a shock absorber to cushion when tibia and femur come together:
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Which state of a living muscle, are the following events associated?

A. Ca+2 released by sarcoplasmic reticulum

B. Actin complexes with myosin

C. ATPase is activated

D. Troponin binds Ca+2

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A myofibril has the proteins-actin, myosin, tropomyosin and troponin. The ratio of actin : myosin is:
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What is the joint between sternum and ribs in humans?
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ATPase enzyme needed for muscle contraction is located in: