Musculus biceps brachii

The video tutorial explains the anatomy and functionality of the biceps brachii muscle. It covers the muscle's structure, including its long and short heads, and their origins. The tutorial details the tendon pathways and mechanical advantages, as well as the innervation by the musculo cutaneous nerve. It also describes the muscle's role in shoulder and elbow joint movements, such as abduction, adduction, flexion, and supination.

Explain the role of the biceps brachii muscle in shoulder movement.

What is the significance of the biceps brachii muscle's ability to perform supination?