ANAT30008 Lecture Notes - Lecture 2: Suprasternal Notch, Xiphoid Process, Sternal Angle
29 Jul 2018
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Document Summary
Thoracic wall - protects thoracic viscera, mechanical basis of breathing and include thoracic cage + covering. 12 ribs - either described as true (1-7), false (8-10) or. True ribs attach directly to serum via their own costal cartilage. False ribs have costal cartilage that extends anteriorly but attaches to the costal cartilage to the rib above (not to sternum) Floating ribs have no anterior attachment at all. Note: can describe a rib based on its attachments (above) or features (below) Atypical ribs (1, 2, 10-12) not like the typical ribs. 3 parts - manubrium body and xiphoid process. Manubrium - clavicular, jugular notch, 1st costal joint and attachment of 2nd costal cartilage. Manubriosternal joint in midline is lump and if move laterally, Where costal cartilage attaches and clavicular notch sternal end of clavicle. Sternal angle (of louis) = between manubrium and body of sternum, important because marks level of iv disc between t4 and t5.
