The Parts of Appendicular Skeleton

The pectoral muscle gird is wedded to the axial skeleton only at the joint amidst the clavicle and the sternum (appendicular Skeleton -predator, 2004). This attachment is weak and unstable, tho gives great flexibility and freedom of execution. The arms have copious rotation about the shoulder joint

The pelvic girdle, on the other hand, is composed of fused crams, relatively firmly firm in position and to each other. The attachment of the pelvic girdle to the sacrum is strong and stable, and almost immovable (Appendicular Skeleton-predator, 2004). This restricts the movement of the legs as compared to the movement of the arms: the legs only have limited movement at the pelvic joint. This is because the legs must bear the weight of the body at all times, and keep it stable in an upright posture. remainder and weight transfer are enhanced by the V-shaped vex of the sacrum fitting into the more or less rigid pelvis.

The pectoral girdle consists of the paired scapulae and the clavicles (Appendicular Skeleton, 2004). The scapula is a large, flat, triangular bone which

The pelvic girdle consists of a large, irregular bone, expanded above and below, and constricted in the optic (Appendicular Skeleton, 2004). Each of the two hipbones is comprised of three bones fused unneurotic: the ilium, the ischium, and the pubic bone.

The ilium is expanded and projected upwards, with the iliac crests at the f number border. The lower edge is smaller, and forms part of the articular surface of the acetabulum, where the gluteal muscles attach on the external side. The iliac fossa and the iliac tuberosity lie on the inner side The os pubis forms the anterior portion of the hip bone, and articulates with the opposite bone forming a cartilaginous joint known as the pubic symphysis. The rami of the pubis and the ischium form the greater part of the obturator foramen, through which the obturator vein, artery, and substance pass down from the pelvis to the thigh.

Appendicular skeleton. (2004). Retrieved at:

Appendicular skeleton. (2004). Retrieved at:

attaches the arms to the trunk, and the glenoid cavity located on the askance angle articulates with the head of the humerus to form the sho
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