ANAT 1010 Chapter Notes - Chapter 8: Spine Of Scapula, Pelvic Inlet, Ankle
Document Summary
Contains 126 bones: forms two pectoral (shoulder) girdles. Expected to know about location and function of bones indicated below. Attaches bones of upper extremities to axial skeleton. Each pectoral girdle consists of two bones: clavicle (collarbone) Medial half of clavicle convex anteriorly (when viewed in anatomical position, it curves. Lies horizontally across anterior part of thorax, superior to first rib towards you) Lateral half concave anteriorly (curves away from you) Forms the anterior strut (rod/bar that resists compression) of pectoral girdle - props shoulder joint away from rib cage. Medial end of clavicle (sternal end) is rounded, and articulates with manubrium of sternum. Broad, flat, lateral end (acromial end), articulates with acromion of scapula at acromioclavicular joint: scapula (shoulder blade) Plastered to posterior wall of thoracic cavity by muscle attachments. Location of acromium (acromioclavicular joint), scapular spine, and coracoid processes, are for muscle attachments and glenoid fossa (glenohumeral joint)
