Consider the components of the lever that causes the flexion of the upper limb at the elbow. The fulcrum of the lever is the __________ and the force to move the rigid bar (the forearm bones) is provided by contraction of the __________.
A) elbow joint; biceps brachii
B) shoulder joint; triceps brachii
C) elbow joint; triceps brachii
D) shoulder joint; biceps brachii
Correct Answer:
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