foramen magnum


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Related to foramen magnum: jugular foramen

foramen magnum

[fə′rā·mən ′mag·nəm]
(anatomy)
A large oval opening in the occipital bone at the base of the cranium that allows passage of the spinal cord, accessory nerves, and vertebral arteries.
References in periodicals archive ?
The applications of morphometric analyses of the foramen magnum are quite diverse.
And toward that end, Kirk and Gabrielle Russo, of Stony Brook University, New York, and lead author of the study, "compared the position and orientation of the foramen magnum in 77 mammal species including marsupials, rodents and primates.
As discussed above, we cannot help but link up foramen magnum position with the anatomic basis of an increased risk of chiari malformation in humans.
In achondroplasia, the cine mode MR imaging demonstrates CSF flow disturbance at the cervicospinal junction resulting from foramen magnum stenosis and medullary compression.
When part of the cerebellum is located below the foramen magnum, it is called a Chiari malformation.
One study about the morphometry of the foramen magnum proposes to graduate the severity of the occipital dysplasia by the proportion of the length of the dorsal notch (N) and the height of the foramen magnum (h).
Once a primary brain tumor was diagnosed based on the MRI scan with radiological evidence of impending foramen magnum herniation, immediate consultation with a pediatric neurosurgeon in a tertiary care facility was arranged.
Como sea, Alicia Sanchez y Compania; Antares de Miguel Mancillas; Apoc, Apoc de Jaime Camarena; Barro Rojo de Laura Rocha; Contempodanza de Cecilia Lugo; Contradanza de Cecilia Appleton; Delfos Danza Con temporanea de Claudia Lavista y Manuel Ruiz; Foramen Magnum de Marcos Rossi; La Cebra Danza Gay, de Jose Rivera; La Manga de Gabriela Medina; Lux Boreal de Henry Torres y Angel Arambula; Quiatora Monorriel de Benito Gonzalez y Evoe Sotelo; Teoria de Gravedad de Aurora Buensuces, entre otros, buscaron desde plazas publicas, auditorios delegacionales e incluso trolebuses para llevar a cabo sus funciones.
Basioccipital: Formaria el cuerpo del condilo occipital y el borde ventral del foramen magnum.
The device was placed into the skull of the pig through the foramen magnum, and the force of the air disrupted the brain material into a liquefied form that made it easier to remove (a technique known as "blowing brains").