ANP 1106 Chapter Notes - Chapter 7: Olecranon Fossa, Ulnar Notch Of The Radius, Shoulder Girdle

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: Jackie Carnegie

Document Summary

Skeletal system human skeleton pt. 2 (appendicular skeleton) Bones of limbs and their girdles pectoral girdle attaches the upper limbs to the body trunk; pelvic girdle secures the lower limbs. Pectoral girdle 2 pairs of bones: clavicles and scapulae (almost a complete circle around upper trunk. Attachment points of muscles that move upper limbs. Bones are light and very moveable b/c only the clavicle is attached to the axial skeleton, the scapulae is only attached laterally allowing it to move freely across the thorax: Socket of shoulder joint (glenoid cavity) is shallow and poorly reinforced (easily dislocated) Clavicles (collarbones) s-shaped; insertion points for muscles also a brace to push arms laterally. Curvature ensures outward fracture away from subclavian artery cone shaped sternal end attaches to sternal manubrium; flattened acromial end articulates with scapula. Scapulae (shoulder blades) thin, triangular, flat bones; dorsally btwn ribs 2 and 7;