HLSC 1200U Lecture 6: A&P Lecture 6 Bones joints and muscles part 3 Chapter 12-16
Document Summary
A&p lecture 8: bones muscles and joints part 3: appendicular skeleton (ch12-16) 126 bones that form the appendages to the axial skeleton. Bones of the shoulder girdle, upper and lower parts of the arm, wrist, hand. Bones of the hip, thigh, leg, ankle, foot. 1 upper bone and 2 lower bones. Upper limbs: 8 carpals, 2 pectoral girdles. Lower limbs: 7 tarsals, patella, 1 pelvic girdle. Articulations: medial: sternum (sternoclavicular joint, lateral: scapula (acromion, s shaped bone is the weakest bone in the body (clavicle most frequently broken bone) Attaches to ribs by muscles and tendons, not by a joint. Articulations: clavicle (acromion, humerus (glenoid cavity, glenoid cavity is a very shallow point of articulation. Structurally weaker but very good flexibility because of the curve in the glenoid curve. Narrow rim of fibrocartilage around the glenoid cavity. Muscles that attach the upper extremity to the torso are located anteriorly (chest) or posteriorly (back and neck)
