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In anatomy, the atlas (C1) is the most superior (first) cervical vertebra of the spine and is located in the neck. The bone is named for Atlas of Greek mythology , just as Atlas bore the weight of the heavens, the first cervical vertebra supports the head . [ 1 ]
The atlas (C1) and axis (C2) are the two topmost vertebrae. The atlas (C1) is the topmost vertebra, and along with the axis forms the joint connecting the skull and spine. It lacks a vertebral body, spinous process, and discs either superior or inferior to it. It is ring-like and consists of an anterior arch, posterior arch, and two lateral masses.
The anterior longitudinal ligament extends superoinferiorly between the basiocciput of the skull and the anterior tubercle of the atlas (cervical certebra C1) superiorly, and the superior part of the sacrum inferiorly; [1] inferiorly, it ends at the sacral promontory. [2] It broadens inferiorly. [1]
It is frequently co-morbid with atlanto-axial joint instability, Chiari malformation, [3] or tethered spinal cord syndrome. The condition can be brought on by physical trauma , including whiplash , laxity of the ligaments surrounding the joint, or other damage to the surrounding connective tissue.
Carmel Greyhounds Chelsea Bennett (13) hugs Ellie Goddard (8) after pitching a shutout inning against the Roncalli Royals during the Carmel Softball Invitational on Saturday, April 20, 2024, at ...
Some patient portal applications enable patients to register and complete forms online, which can streamline visits to clinics and hospitals. Many portal applications also enable patients to request prescription refills online, order eyeglasses and contact lenses, access medical records, pay bills, review lab results, and schedule medical ...
IU Health North is located in Carmel, Indiana, just north of Indianapolis at 116th and Meridian Street. It is part of Indiana University Health, but has a separate board of managers, CEO, executive management team, physician investors, and community representation.
The cruciate ligament of the atlas (cruciform ligament) is a cross-shaped (thus the name) ligament in the neck forming part of the atlanto-axial joint. It consists of the transverse ligament of atlas, a superior longitudinal band, and an inferior longitudinal band. The cruciate ligament of the atlas prevents abnormal movement of the atlanto ...