The flat, triangular bone forming the back part of the shoulder, also known as the shoulder blade. It provides attachment points for multiple muscles and articulates with the humerus and clavicle to form the shoulder joint complex.
From Latin 'scapula' meaning shoulder blade, related to 'scapus' (shaft or stem). The term has remained largely unchanged since Roman anatomical texts, reflecting its distinctive flat, blade-like shape.
Your scapula is like a floating bone - it's not directly attached to your spine or ribcage but is held in place entirely by muscles, which is why you can move your shoulder blades in so many directions! This unique design gives humans incredible arm mobility compared to other animals, but also makes shoulder injuries common when these supporting muscles are weak.
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