Vertebrae Flashcards



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TermsDefinitions
VertebraeIrregular shaped bones
Intervertebral disksCartilage (Fibrocartilage) between vertebrate which cushions and adds flexibility
LigamentsHolds the vertebrae in a straight vertical line
BodyThick drum shape on ventral side (towards belly)
VertebraeHas a foramen which protects the delicate spinal cord
Vertebral archForms the ring around the spinal cord and made of 2 parts called the pedicle and laminae
BodyStacked on top of each other
BodyFuction: Supports body weight
BodyHas cartilage between them
BodyWhere the bone marrow is located for RBC production
Vertebral foramenHole through center of the bone that allows the spinal never to pass and offers protection
Transverse processes"Wings"
Transverse processesSticks out the sides of the bone
Transverse processes, Spinous processesFuction: Provides a place for muscle attachment
Spinous processesPart that sticks out the back
FacetsArea of contact between vertebrate and/or ribs
FacetsFlatten surface
AtlasC1
AtlasTop most vertebrae
AtlasSupports head with 2 large facets
AtlasYes motion
AxisC2
AxisPivots the head
DensBody has enlarged into a process
AxisHas dens
AxisNo motion
CervicalLocation: Neck
Cervical7 Bones
C3-C7Smallest of vertebrae
C3-C7Split spinous processes
C3-C7Two extra foramen for blood vessels
ThoracicLocation: Back of the chest
Thoracic12 Bones
CervicalC1-C7
ThoracicT1-T12
ThoracicLong pointy spinous process which slope's downward
ThoracicSide facets for rib attachment
ThoracicBody is heart shaped
ThoracicLooks like a giraffe's head
LumbarLocation: Lower back "Small of back"
Lumbar5 Bones
LumbarL1-L5
LumbarWider bodies to support more weight than others
LumbarSturdiest bone
LumbarLooks like moose's head
LumbarForamen is triangular
LumbarExtra set of transverse processes
SacrumLocation: Buttocks
Sacrum5 Fused
Sacrum1 Triangular Plate
SacrumBones are fused into one piece
Sacrum8 Foramen for blood vessels and nerves
CoccyxLocation: Tailbone
CoccyxBottom of sacrum
CoccyxEnd of vertebrae column
Coccyx4 Fused
True ribsRibs 1-7
False ribsRibs 8-10
Floating ribsRibs 11-12
Body, costal cartilage, manubrium, xiphoid processFour parts of the sternum
Vertebral columnFunction: Supports head + Trunk. Protects spinal cord
Intervertebral disksSeparates the vertebrae
LigamentsConnects the vertebrae
Thoracic cageRibs, thoracic vertebrae, sternum, and costal cartilage
True ribsJoin sternum directly with a costal cartilage
False ribsJoins sternum indirectly with a costal cartilage
Floating ribsJoins sternum indirectly with no costal cartilage
Cervical, thoracic, lumbar, sacrum, coccyxName all five parts of the vertebrae
4 normal curvesProvides strength, maintain balance, absorb shock and protect
Primary curvesFormed during fetal development, thoracic and sacral curves
Secondary curvesFormed after birth, cervical curve (3months head erect) and lumbar curve (6-12 walk, etc)
KyphosisAbnormal thoracic curve and hunch back
LordosisLumbar curve, goes inward and sways back
ScoliosisLateral bending in thoracic region

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