Which bone structure does the clavicle articulate with?

The clavicle, commonly known as the collarbone, primarily articulates with the scapula, which is the shoulder blade. This articulation occurs at the acromioclavicular joint, where the acromion of the scapula meets the lateral end of the clavicle. This joint is critical for shoulder mobility and stability, allowing for a wide range of upper limb movements.

In addition to its connection with the scapula, the clavicle also articulates medially with the sternum at the sternoclavicular joint, forming a crucial link between the upper limb and the trunk. This dual articulation supports the shoulder girdle's structure, enabling the upper limbs to function effectively during various movements, from lifting to throwing.

The other bones mentioned—humerus, femur, and patella—do not directly articulate with the clavicle, as they are part of different sections of the skeleton. The humerus is the bone of the upper arm, while the femur and patella are part of the lower limb. Thus, the primary articulating partner of the clavicle is indeed the scapula.