Axial skeleton - Theory

9 important questions on Axial skeleton - Theory

How many bones are in the vertebral colomn?

26

How many bones are in the thoratic cage?

26

How many bones are in the axial skeleton?

80
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How to side ribs?

Costal groove = inferior
Tubercle = inferior
1st rib = grooves + muscle attachment sites = superior
1st rib = the head must point towards the table

Thoracic vertebrae characteristics

Only one with (three) facets that articulate with the ribs (costal facets)

Lumbar vertebrae characteristics

No facets on the body and transverse process
Only inferior and posterior articular facets

Cervical vertebrae characteristics

Only one with transverse foramina

1e and 2nd rib characteristics

Shorter
No costal groove

Floating ribs characteristics

No tubercle
Pointy end

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