HSC 214 Axial Skeleton: Thorax

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Last updated 11:47 AM on 9/5/26
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14 Terms

1
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Ribs

Twelve pairs of curved flat bones forming the lateral thoracic walls

<p>Twelve pairs of curved flat bones forming the lateral thoracic walls</p>
2
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True ribs

first seven pairs directly attaching to the sternum via costal cartilages

<p>first seven pairs directly attaching to the sternum via costal cartilages</p>
3
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False ribs

three pairs indirectly attaching to the sternum via shared costal cartilage

<p>three pairs indirectly attaching to the sternum via shared costal cartilage</p>
4
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Floating ribs

last 2 pairs that do not attach to the sternum

<p>last 2 pairs that do not attach to the sternum</p>
5
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Costal Grove

indent on the inferior border of ribs 2-10

<p>indent on the inferior border of ribs 2-10</p>
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Costal Angle

area where the rib begins to curve sharply anteriorly

<p>area where the rib begins to curve sharply anteriorly</p>
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Costal Cartilage

Hyaline cartilage attaching ribs to the sternum

<p>Hyaline cartilage attaching ribs to the sternum</p>
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Sternum

broad flat bone forming the anterior thoracic wall

<p>broad flat bone forming the anterior thoracic wall</p>
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Manubrium

triangular top part of the sternum

<p>triangular top part of the sternum</p>
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Jugular notch

Depression in the superior border of the manubrium

<p>Depression in the superior border of the manubrium</p>
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clavicular notch

lateral depressions in the superior border of the manubrium

<p>lateral depressions in the superior border of the manubrium</p>
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Body of sternum

long flat part of the sternum between the manubrium and xiphoid process

<p>long flat part of the sternum between the manubrium and xiphoid process</p>
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Xiphoid Process

inferior pointed tip of the sternum

<p>inferior pointed tip of the sternum</p>
14
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Sternal angle

horizontal ridge formed by the junction of manubrium and body of sternum

<p>horizontal ridge formed by the junction of manubrium and body of sternum</p>