Vertebral Column Composition and Type Characteristics


VERTEBRAL COLUMN COMPOSITION
 
mobilityNtypesubtypeidentity
7   Cervical VertebraTypical:3-6
Atypical: 1, 2 & 7
Movable12   Thoracic VertebraTypical: 2 - 8
Atypical: 1, 9 - 12
5   LumbarTypical: 1 - 4
Atypical: 5
Fixed5   Sacral Vertebra = Sacrum
5   Coccygeal Vertebra = Coccyx
Total33


CHARACTERISTICS OF TYPICAL VERTEBRAE
 Typical Cervical (C3-6)Typical Thoracic (T2-8) Typical Lumbar (L1-4)
BodySmall; transversely elongated; lippedMedium-sized; heart-shaped; and facetedLarge; kidney-shaped
Vertebral foramenLargest; triangularSmallest; circularIntermediate;triangular
PediclesRoundedFlattened from side to side Flattened from above downward
Vertebral notches EqualVery unequalLess unequal
LaminaeLong, narrow, band-like Short, broad, and imbricated Short, thick and separated
Transverse processesFenestrated; tuberculated Facetted; knobbedSpiked and spatula-shaped. Accessory and Mamillary Processes
SpineShort and bifidLong, prismatic; sloping Large, broad and hatchet-shaped
Articular processesLook chiefly (superior) up and (inferior) down Look chiefly (superior) back and (inferior) forwards Look chiefly (superior) in and (inferior) out
RibsCostal barseparate boneTransverse process

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