Vertebral Column Flashcards
the ________ _______ or spine forms the central axis of the skeleton and is centered in the mid-sagittal plane of the posterior part of the trunk
vertebral column
5 groups of vertebral column
cervical vertebrae - 7
thoracic vertebrae - 12
lumbar vertebrae - 5
sacral vertebrae - 5
coccygeal vertebrae - 3 to 5 in adult
it is the most superior occupying the region of the neck
cervical vertebrae
it is the first two cervical vertebrae that is atypical because they are structurally modified to join the skull
atlas and axis
___ cervical vertebrae is also atypical because it is slightly modified to join the thoracic spine
7th cervical vertebrae
________ vertebrae lies in the dorsal or posterior portion of the thorax
thoracic vertebrae
_________ vertebrae occupying the region of the loin
lumbar vertebrae
________ vertebrae located in the pelvic region
sacral vertebrae
_________ vertebrae, terminal vertebrae also in the pelvic region
coccygeal vertebrae
the upper three regions are termed the _____ or movable vertebrae because they remain distinct throughout life
true or movable
the pelvic segment in the two lower regions are called false or ____ vertebrae because of the change they undergo in adults
false or fixed
2 vertebral curvature
lordotic
kyphotic
convexity anteriorly
lordotic curve
concavity anteriorly
kyphotic curve
abnormal lateral curvature of the vertebral column is called _______
scoliosis
articulation between the two vertebral bodies, cartilaginous symphysis joints which is slightly movable
intervertebral joints
articulation between articulation processes of the vertebral arches, synovial gliding joint which is freely movable
zygapophyseal joints
articulation between the atlas and occipital bone, synovial ellipsoidal joints
atlanto-occipital joints
articulation of anterior arch of the atlas that rotate around the dens of the axis, synovial gliding and synovial pivot articulations
atlantoaxial joint
articulation between the heads of the ribs and bodies of the thoracic vertebrae, synovial gliding which is freely movable
costovertebral joints
articulation between the tubercle of the ribs and the transverse process of the thoracic vertebrae
costotransverse joints