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Showing posts from July 22, 2010

THORAX, PELVIS, AND EXTREMITIES BONES -LESSON 212

Bones of the Chest (Thorax), Pelvis (Hip), and Extremities (Hand and foot): Thoracic or Chest Cavity Bones: Thoracic bones consist of Clavicle, scapula, sternum, and rib bones.  Now we will see about each of these bones one by one. 1.  Clavicle:  The other name of clavicle is collar bone.  This bone is slender in structure.  These bones are two in number and on each side of the body.  Collar bone or clavicle attach the shoulder bone to the breastbone on each side of the body. 2.  Scapula:  This is called as shoulder bone.  This bone is triangular in structure.  Scapula is on each dorsal side of the body.  Acromion is an extension of the scapular bone.  Acromion joins the shoulder to the clavicle.  Acromion means shoulder joint.  (acr/o means joint or extremity and om/o means shoulder). 3.  Sternum:   The other name of the sternum bone is breastbone.  This bone is flat in structure.  Sternum bone is reaching down the midline of the chest.  The peak or topmost regio