CVR 1 Flashcards
where does the sternum lie?
anteriorly in the midline of the thoracic cage
manubrium
superior part
-superior border w notch =suprasternal (jugular) notch
->laterally artics w clavicle (collarbone) at sternoclavicular notch+first rib
->inferiorly artics w body of sternum at manub riosternal joint (/angle of Louis)
Body
-inferior to manubrium
-artics w ribs 2-7
-2nd rib artics w sternum at sternal angle (inferior part of manubrium+superior part of body)
-inferiorly artics w xiphoid process
xiphoid process (/xiphisternum)
-inferior to body
-small + variable in shape
-7th rib artics inferior part of sternum and superior part of this
how many ribs
12
anterior parts of the ribs are composed of
costal cartilage
The ribs articulate with their costal cartilages at ……… joints.
costochondral