Consider the Components of the Lever That Causes the Flexion

question 68

Multiple Choice

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

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