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14 terms

Bones of the Thorax

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True Ribs
top 7 pairs of ribs that attach directly to the sternum by costal cartilage
False Ribs
last 5 pairs of ribs; attach indirectly to sternum
Floating Ribs
last two pairs of ribs; do not attach to sternum
Head
part of the rib that articulates with the demifacets of the body of a thoracic vertebra
Tubercle
feature of the rib that articulates with transverse process of thoracic vertebra
Sternal Extremity
feature of rib found medialy and articulates with the sternum
Costal Groove
Channel on the inner, inferior face of the rib that lodges the intercostal nerves and blood vessels
Sternum
the flat bone that articulates with the clavicles and the first seven pairs of ribs
Manubrium
the bony structure that forms the upper portion of the sternum
Clavicular Notches
Top of manubrium where clavical bones attach to sternum
Jugular Notch
Notch in top center of manubrium of sternum
Body
the bony structure that forms the middle portion of the sternum
Sternal Angle
Junction of the manubrium and body of the sternum at the level of the second costal cartilage.
Xiphoid Process
the structure made of cartilage that forms the lower portion of the sternum