The scapula, commonly known as the shoulder blade, is classified as a flat bone. Flat bones are characterized by their thin, flattened shape, which provides a broad surface for muscle attachment and is crucial for protecting underlying organs.
The scapula plays a pivotal role in the shoulder girdle, facilitating the attachment of various muscles such as the rotator cuff. Its flat structure allows it to fit snugly against the ribcage, enhancing mobility and stability in the upper limb. Additionally, the scapula contributes to the formation of the shoulder joint by articulating with the humerus (the upper arm bone) and the clavicle (the collarbone).
Overall, as a flat bone, the scapula serves essential functions in both support and movement, making it a vital component of the skeletal system.