Transcript Axial - gaskinsanatomy

Axial Skeleton
Skull, Thoracic, Vertebral Column
The Axial Skeleton – the vertebral
column.
7 Cervical Vertebra
12 Thoracic
Vertebrae
What are the names of the 5 groups of vertebrae
and how many are in each group?
Cervical
Thoracic
Lumbar
C1-C7
T1-T12
L1-L5
5 sacral
4 Coccyx
Stand up!
SPINAL CURVATURE
Identify the different parts of the vertebrae
Spinous
process
Transverse
process
Vertebral foramen
Body
Vertebral disks are found between the body portions of
individual vertebrae – this video shows
a herniated disc.
VIDEO
Atlas (C1) – Superior view
Axis (C2) – superior view
Cervical vertebrae
Smallest, lightest,
vertebral foramen is
traingular, spinous
process is short and
bifurcated.
Turn to your neighbor
and ask if you may feel
their C7.
Visible through the skin
Thoracic vertebrae
•Larger body than
cervical vertebrae
•Costal facets
articulate with ribs
•Vertebral
foramen are round
Lumbar vertebrae
•Largest and strongest
body.
•Spinous process is hatchet
shaped
•Spinal cord ends at L2
The sacrum
Formed from 5 fused vertebrae
Sacral canal
Body
Superior
articular
process
Ala
Body of first
sacral vertebrae
Median
Sacral
crest
Transverse ridges
Lateral
Sacral
crest
Anterior
Sacral
Posterior
foramina Sacral
foramina
Apex
Sacral
hiatus
Coccyx
WHAT KIND OF VERTEBRAE
IS THIS?
Ribcage/Thoracic cage
Costal = Ribs
Sternal Angle
True ribs attach
directly to the
sternum by their
own cartilage
False ribs either
attach in
directly to the
sternum or
not at all.
The ribs