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The distances between the dens and surrounding structures are also key features that can suggest the diagnosis, with the normal distance between the dens and basion (i.e., dens–basion interval; BDI) measuring less than 9 mm on CT, and the distance between the atlas and dens (i.e., atlas–dens interval; ADI) measuring less than 3 mm on CT, although this can be increased in cases of ...
The basion-dens line as seen on a radiograph is the distance between the basion and the top of the dens, used in the diagnosis of dissociation injuries. [4] Genetic disorders can cause a prominent occiput as found in Edwards syndrome, and Beckwith–Wiedemann syndrome. The identification of the location of the fetal occiput is important in ...
Ossification of the apical ligament of dens may also occur, resulting in a variant bony tubercle at the inferior end of the clivus. [5] Two further variations, of possibly other etiology, are found at the lower end of the clivus: condylus tertius and arcus praebasiocipitalis.
On its lower surface, about 1 cm. in front of the foramen magnum, is the pharyngeal tubercle which gives attachment to the fibrous raphe of the pharynx.. On either side of the middle line the longus capitis and rectus capitis anterior are inserted, and immediately in front of the foramen magnum the anterior atlantooccipital membrane is attached.
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Mercedes just started selling its eSprinter van in the US in Q4, with sales totaling only 828 units.However, the company did sell a total of 49,500 commercial vans in the US last year.
The basion is located at the midpoint on the anterior margin of the foramen magnum. The alar ligament , which is attached on each side to the tubercle of occipital condyle , divides the foramen magnum into an anterior smaller compartment and a posterior larger compartment.
$129.00 at apple.com. How Many Miles To Run Per Day For Weight Loss. If you’re running with weight loss goals at the top of your mind, time is going to be more important than distance in this ...