Term
| suprasternal/jugular notch |
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Definition
the suprasternal (jugular) notch is the most superior part of the manubrium, between the clavicles
At vertebral level T2-3 |
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Term
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Definition
the top bone of the sternum; is connected to the clavicles, ribs 1 & 2, and the body of the sternum
The top of the manubrium is called the suprasternal notch and is located at vertebral level T2-T3; the bottom of the manubrium (where it connects to the body of the sternum) is located at T4-5 |
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Term
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Definition
| The area between the manubrium and body of the sternum; located at T4-5 vertebral level and the 2nd ribs. |
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Term
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Definition
attached superiorly to the manubrium at T4-5 (sternal angle) and inferiorly to the xiphoid process at T8
Ribs 2-7 are attached to the sternal body; (ribs 8-10 are connected to the 7th rib)
Attachments: pectoralis major |
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Term
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Definition
the area of the sternum below the body of the sternum.
Located at vertebral level T8-T9
Cartilaginous at birth, becomes ossified as an adult |
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Term
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Definition
The head of the rib articulates with the body of the numerically corresponding vertebra and with the body of the vertebra superior to it
It is marked by a kidney-shaped articular surface, divided by a horizontal crest into two facets for articulation with the depression formed on the bodies of two adjacent thoracic vertebrae; the upper facet is the smaller; to the crest is attached the interarticular ligament. |
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Term
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Definition
| Moving laterally from the head of the rib, the neck of the rib is the region between the head and the tubercle |
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Term
| tubercle of rib (and articular facet) |
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Definition
| The tubercle articulates (at the articular facet) with the transverse process of the numerically corresponding vertebra. It marks the beginning of the costal groove |
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Term
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Definition
The angle of a rib (a.k.a costal angle) may both refer to the bending part of it, and a prominent line in this area, a little in front of the tubercle.
This line is directed downward and laterally; this gives attachment to a tendon of the Iliocostalis.
Pathology: Angle of rib is frequent site of fractures |
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Term
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Definition
| the shaft (or body) of the rib makes up the distance from the angle of the rib all the way to the costal cartilage |
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Term
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Definition
| The Costal groove is a groove between the ridge of the internal surface of the rib and the inferior border. It contains the intercostal vessels and intercostal nerve. The groove extends from the tubercule all the way to the costal cartilage. |
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Term
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Definition
The costal cartilages are bars of hyaline cartilage which serve to prolong the ribs forward (let them move forward) and contribute very materially to the elasticity of the walls of the thorax.
Note that the first seven pairs of ribs are connected directly to the sternum by way of their costal cartilages; these are the “true ribs”. Ribs 8 – 10 are connected to each other via their costal cartilages and indirectly to the sternum. Ribs 11 and 12, the “free” or “floating” ribs, have no anterior attachments. |
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