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The shoulder girdle or pectoral girdle is the set of bones in the appendicular skeleton which connects to the arm 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 .
English: The pectoral girdle is the set of bones which connect the upper limb to the axial skeleton on each side. It consists of the clavicle and scapula in humans and, in those species with three bones in the pectoral girdle, the coracoid. Some mammalian species (e.g. dog and horse) have evolved to have only the scapula.
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The shoulder girdle [5] or pectoral girdle, [6] composed of the clavicle and the scapula, connects the upper limb to the axial skeleton through the sternoclavicular joint (the only joint in the upper limb that directly articulates with the trunk), a ball and socket joint supported by the subclavius muscle which acts as a dynamic ligament. While ...
The axial skeleton and the appendicular skeleton together form the complete skeleton.The appendicular skeleton is the part of the skeleton that includes the pectoral girdle, the upper limbs, the pelvic girdle, and the lower limbs. The appendicular skeleton and the axial skeleton together form the complete skeleton. Date: 27 May 2009, 20:37 (UTC ...
The vertebrae that transitioned between the neck and back vertebrae in the pectoral region of plesiosaurs, close to the front margin of the forelimb girdle, are often termed pectoral vertebrae. Elasmosaurus had three pectoral vertebrae, which is a common number for elasmosaurids. The rib facets of the pectoral vertebrae were triangular in shape ...
The other process is the deltopectoral crest, which is similarly small among ophthalmosaurids (i.e. less than half of the shaft length) in the same manner as Arthropterygius, [16] Platypterygius hercynicus, [17] and Janusaurus; [15] it is about half of the shaft length in Ophthalmosaurus, and is almost as long as the entire shaft in Sisteronia ...
The pectoral girdle (shoulder girdle) has a fairly standard form shared with other tanystropheids. The clavicles (collarbones) were curved and slightly twisted rods. [ 9 ] [ 2 ] They lie along the front edge of the interclavicle , a plate-like bone at the center of the chest with a rhombic (broad, diamond-shaped) front region followed by a long ...