The shoulder support or pectoral support is the arrangement of bones in the affixed skeleton which interfaces with the arm on each side. In people it comprises of the clavicle and scapula; in those species with three bones in the shoulder, it comprises of the clavicle, scapula, and coracoid. Some mammalian species, (for example, the canine and the pony) have just the scapula.
The pectoral supports are to the upper appendages as the pelvic support is to the lower appendages; the supports are the parts of the attached skeleton that stay the limbs to the pivotal skeleton.
In people, the main genuine anatomical joints between the shoulder support and the hub skeleton are the sternoclavicular joints on each side. No anatomical joint exists between every scapula and the rib confine; rather the strong association or physiological joint between the two licenses incredible portability of the shoulder support contrasted with the reduced pelvic support; in light of the fact that the upper appendage isn't normally engaged with weight bearing, its steadiness has been relinquished in return for more prominent versatility. In those species having just the scapula, no joint exists between the forelimb and the thorax, the main connection being strong.
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