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What is the infraspinatus muscle?

Located at the low back, the infraspinatus muscle runs from the low back and hips to the top of the upper arm (humerus). It helps externally rotate the arm, extend the shoulder, and bring the upper arm down to the side.

Continue Learning about Parts of the Muscular System

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The triceps are posterior muscles of the upper arm that extend the shoulder and the elbow. They are ...
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.