ok2 Flashcards
What are the 3 types of ribs?
True ribs
false ribs
floating ribs
What are true ribs
The first 7
Connected to the sternum by costal cartlige
What are false ribs
8-10
each one has its costal cartlige connected to the costal cartlige above it
What are floating ribs
11-12
end in the muscles of the abdominal wall (bc the abdomen is under the thorax)
What are typical ribs? Which ribs are they ? What are their sections?
Ribs: 3-9
They all look the same
Sections: head,neck, tubercle, and body.
Head: Has two openings, One opening connects to the vertebrae with the same number/position as the rib. The other opening connects to the veretbrae above it.
It also connects to the IV disc (cartlige) between both.
Tubercule: connects with the transverse process of the corresponding vertebrae. with the exception of 11 and 12
Costal groove:houses the intercostal vessels and nerves
What is the weakest part of a rib that is most prone to injuries?
Infront of the ribs angle
(it makes sense bc that is the part that bends)
What are atypical ribs?
Ribs: 1,2,10,11,12
What are the characteristics of rib 1?
shortest, flattest, broadest,
most curved. (bc it is number 1)
scalene tubercle for anterior scalene muscle (bc it is 1, an uneven number)
Two grooves: Houses subclavian artery and vein
What is the cervical rib?
Mesenchymal or cartilaginous
elongation of the transverse process of the seventh cervical vertebra.
What type of Facets do typical thoracic vertebrae have?
T2-T9
Costal Demifacets: Attach the corresponding rib and rib below
Costal facets: On transverse process and Attach to the tubercule of the corresponding rib.
What type of Facets do atypical thoracic vertebrae have?
T1, T10-T12
T1:
Complete Facet: To connect to head of Rib 1
Demifacet: To connect to head of rib 2
……………………………………………………………….
T10-T12:
complete facets are on
bodies for articulation with the entire head of the corresponding rib.
