Structural Kinesiology Module 1 Practice Exam

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Which rotary movement is away from the midline of the body?
Correct Answer:
External Rotation
Explanation:
Rotations around a joint are described by where the limb moves relative to the body's midline. If the limb turns so its moving part points away from the midline, that is external rotation. The movement described as away from the midline fits external rotation best. For example, rotating the thigh outward at the hip or turning the arm so the forearm rotates outward away from the body demonstrates external rotation. In contrast, internal rotation is toward the midline, circumduction is a circular path combining multiple movements, and supination is forearm rotation turning the palm upward, none of which specifically define moving away from the midline.

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