atlantooccipital joint

(redirected from atlanto-occipital articulation)

at·lan·to·oc·cip·i·tal joint

[TA]
a condylar synovial joint between the superior articular facets of the atlas and the condyles of the occipital bone.

atlantooccipital joint

[-oksip′itəl]
Etymology: Gk, atlas, to bear; L, ob, against, caput, head
one of a pair of condyloid joints formed by the articulation of the atlas of the vertebral column with the occipital bone of the skull. It includes two articular capsules, two membranes, and two lateral ligaments. The atlantooccipital joint permits nodding and lateral movements of the head.

at·lan·to·oc·cip·i·tal joint

(at-lantō-ok-sipi-tăl joynt, at-lantō-ok-sipi-tăl joynt) [TA]
Articulation between the superior facets of the atlas and the condyles of the occipital joint.
Synonym(s): articulatio atlantooccipitalis, atlanto-occipital articulation.

atlantooccipital joint (atlan´toksip´itl),

n condyloid joint formed by the articulation of the atlas of the vertebral column with the occipital bone of the skull.
References in periodicals archive ?
The upper cervical spine is especially critical to overall mobility, as approximately one-half of the flexion/extension arc is achieved by the atlanto-occipital articulation, and approximately 50% of neck rotation occurs between the atlas and axis.
Other anatomic structures that need to be accounted for with this technique are: the nerve root of C2, which does not have the typical bony protection given to other nerve roots as they exit the spinal canal; the atlanto-occipital articulation, which can be violated if the screw is directed too far cranially; and the structures that are anterior to this articulation, particularly the internal carotid artery which can lie on the anterior surface of C1.
These myalgic disturbances are called "the ocular-cervical syndrome" which consists of a pressure sensibility of the atlanto-occipital articulation, trochlealgia (neuralgia of ciliary nerves), and myalgia of the obliquus superior and of the rectus inferior muscles.