NSE 13A/B Chapter Notes - Chapter 1: Anterior Superior Iliac Spine, Posterior Superior Iliac Spine, Subacromial Bursa
8 May 2015
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Document Summary
Allows for three motions: hinge action to open and close jaws, gliding action for protrusion, gliding action for side-to-side movement of lower jaw spine. Vertebrae has 4 curves: c&l curves are concave; t&sc (sacrococcygeal) convex. Intervertebral discs elastic brocartilaginous plates constituting 1/4 of the length of. Centre of each disc has nucleus pulposus soft, semi uid, mucoid shoulder. Glenohumeral joint articulation of humerus w/ glenoid fossa of scapula: ball-and-socket action, enclosed by 5 muscles & tendons stabilizing it rotator cuff of the shoulder. Subacromial bursa helps during abduction of the arm. Bones of shoulder have palpable landmarks: scapula + clavicle shoulder girdle, top of shoulder acromian process, which is the bump of scapula, greater tubercule is of the humerus, coracoid process of the scapula elbow. Palpable landmarks are medial & lateral epicondyles of humerus; large olecranon. Ulnar nerve runs between olecranon process and medial epicondyle process of ulna in between.
