Bicep Contraction Causes Elbow Flexion, Not Adduction
Contracting the biceps brachii produces elbow flexion (bending), not adduction.
- Flexion: Decreasing joint angle (bending elbow).
- Adduction: Moving limb toward body midline.
The biceps also supinates the forearm (palm up). Adduction of the arm is primarily performed by pectoralis major and latissimus dorsi.
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