Specific joints of the spine- cervical spine Flashcards
(18 cards)
how many vertebrae does the cervical spine consist of?
7
what is C1 called? what is its function?
the atlas- supports the weight of the head through two facet joints that form the atlanto-occipital joint
what is C2 called? what is its superior projection called?
the axis
the dens
what forms the atlantoaxial joint?
the articulation between the dens and the anterior arch of the atlas
name the joints/articulations (4) of the cervical spine
atlanto-occipital joint
antlantoaxial joints
intervertebral joints
zygapophyseal joints
what type of joint is the atlanto-occipital joint?
condylar synovial joint
what cranial motions does the atlanto-occipital joint permit?
flexion and extension
what type of joints are the atlantoaxial joints?
plane synovial joints
what cervical motions do the atlantoaxial joints permit?
flexion, extension, lateral flexion and rotation
at what joint does the majority of rotation of the skull on the spinal column occur?
at the atlantoaxial joints
what structures are the cervical intervertebral joints formed by?
the superior and inferior surfaces of the vertebral bodies and the associated intervertebral disks
what are the sygspophyseal joints of the cervical spine formed by?
the right and left superior articular facets of one vertebra and the right and left inferior articular facets of an adjacent superior vertebra
what cervical joint permits flexion and extension of the cranium?
atlanto-occipital joint
what cervical joints permit cervical flexion, extension, lateral bending and rotation?
the atlantoaxial joints
what is the capsular pattern of the cervical spine?
lateral flexion and rotation equally limited, extension
what is the loose packed position of the cervical spine?
midway b/t flexion and extension
what is the close packed position of the cervical spine?
extension
what are the osteokinematic motions of the cervical spine?
flexion, extension, lateral flexion, rotation
