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BIO 121-051 #3

Spinal Column

Cervical Vertebrae smallest vertebrae, spinous process forks, look for transverse foramina
Transverse Foramina two small holes on transverse process of cervical vertebrae for cranial nerves
Atlas first cervical vertebra, has no body, articulates with occipital condyles
Axis second cervical vertebra, has dens
Dens knoblike projection on axis; atlas rotates around dens (Remember Atlas rotates around Axis just like Earth rotates around an axis!...Atlas = Earth)
Thoracic Vertebrae looks like a giraffe from the side; long, downward slanting spinous process
Articular Facets smooth area on tips of tranverse processes of thoracic vertebrae where the ribs articulate
Lumbar Vertebrae larger vertebrae; looks like a moose from the side, spinous process is much larger and projects straight back
Sacrum Large triangular bone with holes
Coccyx "tail bone", hangs off sacrum
Ribs C-shaped bones
Sternum looks like a necktie
Manubrium most superior part of sternum; the "knot" of the necktie
Body rectangular main portion
Xiphoid Process small projection at inferior end of sternum
Sternal Angle ridge between manubrium and body
Created by: parkland_ap