Question

a – joint allows movement in the shoulder​

Answer 1

Answer:

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The human shoulder is the most mobile joint in the body. This mobility provides the upper extremity with tremendous range of motion such as adduction, abduction, flexion, extension, internal rotation, external rotation, and 360° circumduction in the sagittal plane.

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Answer 2

Acting in conjunction with the pectoral girdle, the shoulder joint allows for a wide range of motion at the upper limb; flexion, extension, abduction, adduction, external/lateral rotation, interna/medial rotation and circumduction. In fact, it is the most mobile joint of the human body

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