Rotator cuff
The rotator cuff is a group of muscles that perform a variety of tasks such as flexion, abduction, internal rotation and external rotation. The muscles in this group are essential to all movement of the shoulder, making them very essential for upper body mobility. Namely, the muscles of the rotator cuff are supraspinatus, infraspinatus, teres minor and subscapularis.
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Ummm I am doing the same assignment as you so I do not even know it lol
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If it is still maintained in the human population, hemoglobin Lepore must be selected for in evolution.
Well Chimpanzees have a different living of humans. They also have a different habitat. They eat different food than a human would.
