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・ Shoulda Been Home
・ Shoulda Gone Dancin'
・ Shoulda Let You Go
・ Shoulda Woulda Coulda
・ Shoulder
・ Shoulder (road)
・ Shoulder angel
・ Shoulder Arms
・ Shoulder Arms (1939 film)
・ Shoulder arthritis
・ Shoulder bag
・ Shoulder belt
・ Shoulder belt (military)
・ Shoulder dystocia
・ Shoulder examination
Shoulder girdle
・ Shoulder joint
・ Shoulder Lean
・ Shoulder mark
・ Shoulder Mountain
・ Shoulder pad sign
・ Shoulder pads
・ Shoulder pads (fashion)
・ Shoulder plane
・ Shoulder presentation
・ Shoulder problem
・ Shoulder programming
・ Shoulder replacement
・ Shoulder rest
・ Shoulder shrug


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Shoulder girdle : ウィキペディア英語版
Shoulder girdle

The shoulder girdle or pectoral girdle is the set of bones which connects the upper limb 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.
==Human anatomy==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Shoulder girdle」の詳細全文を読む



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