Covers the twelve pairs of ribs, starting with how they are grouped: seven true ribs that join the sternum directly, and five false ribs, with the upper three attaching through the cartilage of the rib above and the last two having no front connection. It then describes the structure of typical ribs (III to IX) and atypical ones (I, II, X, XI and XII), each illustrated, before explaining the sternum as a fusion of segmental sternebrae that begins as cartilage and ossifies in the adult.
Topic 3 of 264 in the MU Sofia syllabus for Anatomy (Dental Medicine, Year 2). The free AceMed note covers it in 4 sections, about 85 words (1 min of reading), with 7 flashcards.
In this note
RIPS
Types of ribs :
Rips structure :
STERNUM
RIPS
There are 12 pairs of ribs.
Types of ribs :
(I- VII) True ribs - articulate directly with the sternum.
(VIII - XII) False ribs - the remaining.
(VIII - X) - articulate anteriorly with the costal cartilages of the ribs above
(XI & XII) - have no anterior connection.
Rips structure :
A) Typical Structures : (III - IX)
B) A typical : (rib I, II, X, XI & XII)
STERNUM
Represents lines of fusion between the segmental elements called sternebrae
begins as a cartilaginous structure which becomes ossified in the adult.
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