La cintura escapular es el segmento proximal del miembro superior. Se extiende desde la base del cuello hasta el borde inferior del músculo pectoral mayor. Fija la articulación glenohumeral al tronco, de manera que constituye la comunicación entre el miembro superior o torácico y el tronco. La cintura escapular se encuentra formada por la escápula y la clavícula. Se divide en tres regiones: anterior o axilar, media o deltoidea y posterior o escapular.

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The shoulder girdle or pectoral girdle is the set of bones which connects the arm to the axial skeleton on each side. In humans it consists of the clavicle and scapula; in those species with three bones in the shoulder, it consists of the clavicle, scapula, and coracoid. Some mammalian species (such as the dog and the horse) have only the scapula. The pectoral girdles are to the upper limbs as the pelvic girdle is to the lower limbs; the girdles are the parts of the appendicular skeleton that anchor the appendages to the axial skeleton. In humans, the only true anatomical joints between the shoulder girdle and the axial skeleton are the sternoclavicular joints on each side. No anatomical joint exists between each scapula and the rib cage; instead the muscular connection or physiological joint between the two permits great mobility of the shoulder girdle compared to the compact pelvic girdle; because the upper limb is not usually involved in weight bearing, its stability has been sacrificed in exchange for greater mobility. In those species having only the scapula, no joint exists between the forelimb and the thorax, the only attachment being muscular.

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