2.1 Deep Back Flashcards
Number of vertebrae and sections
33 vertebrae7 cervical12 thoracic5 lumbar5 sacral4 coccygeal
Period when cervical vertebrae becomes convex
4th to 5th month when the baby gains control of his head
Period when the lumbar area becomes convex
1 year when the baby begins to walk
Main mass of the bone; also the weight-bearing structure
Vertebral body
Identify and classify the intervening disks between vertebrae
Intervertebral discsSymphyses: fibrocartilaginous joints
Cartilage that covers the superior and inferior surfaces of the vertebral body
Hyaline cartilage
Process of the vertebrae which act on rotation, and maintains extended position of back
Transverse processes
Serve as shock absorbers
intervertebral discs
Parts of the intervertebral discs and corresponding description
Annulus fibrosus: multiple layers of fibrous cartilage in different directions like a tireNucleus pulposus: gel for shock absorbance
Where spinal nerves exit, blood supply enters and where venous structures enter and exit
Intervertebral foramen
Synovial joint formed by the inferior and superior articular processes; also, classify the joint
Zygopophysial joint; gliding joint
Smallest among 24 movable vertebrae
Cervical vertebrae
Describe the cervical vertebrae
Large and triangular foramenSmall and wide vertebral bodyNearly horizontal articulation of articular facets
Also known as the atlasWidest of the cervical vertebraeYES bone
C1 vertebrae
NO bone;Also known as the axis
C2 vertebrae
Describe the thoracic vertebrae
heart-shaped bodycircular and smaller vertebral foramenoverlapping spinous process which allows body to bend backaction is mainly rotationWith demifacet