Chapter 7 The Skeleton Lecture Flashcards
consists of 7 vertebrae
Cervical
Consists of 12 vertebra
Thoracic
Consists of 5 vertebrae
Lumbar
one bone, formed from fusion of several
bones, articulates with hip
Sacrum
also fused bones that form terminus of
column
Coxxyx
continuous bands from neck to sacrum that run down front and back of spine
Anterior and Posterior Longitudinal Ligaments
connects adjacent vertebrae
Ligamentum flavum
the anterior weight-bearing region
Body
short pillars form sides of arch
Two pedicles
fused, flattened plates form posterior arch
Two laminae
enclosure formed by body and vertebral arch coming together
Vertebral foramen
series of vertebral foramina
Vertebral canal
lateral openings between vertebrae for passage of spinal nerves
Intervertebral foramina
No body or spinous process
Consists of anterior and posterior arches, and two lateral masses
Superior surfaces of lateral masses articulate with occipital condyles
Occipital condyles “carry” skull
Movement for nodding head “Yes”
Atlas (C1)
Has body and processes like other vertebrae
Major feature is knoblike dens that projects superiorly into anterior arch of atlas
Dens is the “missing” body of atlas
Dens is a pivot for rotation of atlas
Movement allows side to side rotation for saying “No”
Axis