foramen magnum

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Related to foramen magnum: jugular foramen
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  • noun

Words related to foramen magnum

the large opening at the base of the cranium through which the spinal cord passes

References in periodicals archive ?
Numerous sources erroneously describe the foramen magnum as an oval opening; in fact, the morphology of the foramen magnum is subject to much variation.
The vertebral arteries are at increased risk of injury with neck manipulation, likely due to their close association with the cervical spine Most chiropractic injuries occur within the complex loop of the vertebral arteries from where they exit the transverse foramen of C2 to where they enter the foramen magnum.
The argument their analysis supports goes something like this: the foramen magnum in bipedal species is shifted forward in order to balance the head directly on top of the spine.
It is a bony process in the median line located at the front rim of the occipital foramen magnum.
In most mammals, including apes, the foramen magnum is situated behind the skull, as the head extends forward from the body.
The occipital bone of skull can be described as being perforated by the foramen magnum with the basilar part in front, the squamous part behind and the condylar parts lateral to the foramen magnum1.
El mesenteron o ventriculo es la region mas desarrollada del tracto intestinal, ocupando la cavidad corporal desde el protorax hasta el tercer esternito abdominal, el cual se divide en dos porciones, el promesenteron o ventriculo anterior que se inicia desde la porcion limitrofe del foramen magnum, justo detras de la valvula cardiaca, en una porcion ascendente hasta el metatorax y el postmesenteron o ventriculo posterior que finaliza en el tercer esternito abdominal.
Los juveniles mostraron craneos redondeados, cortos, anchos y altos, hocicos cortos y anchos, paladares anchos, basicraneos breves y ensanchados y foramen magnum mas grande y ventral.
Ba(Basion): punto posteroinferior del hueso occipital en el margen anterior del foramen magnum.
The mechanical engineering strains experienced by the V3 segment of the VA, the segment which exits from the C2 transverse foramen and loops around C1 into the foramen magnum, during a Diversified-style cervical manipulation at C2-C4 vertebral levels ranged from 2.
TEHRAN (FNA)- Anthropology researchers from The University of Texas at Austin have confirmed a direct link between upright two-legged (bipedal) walking and the position of the foramen magnum, a hole in the base of the skull that transmits the spinal cord.
3) CSF studies also provide a better understanding of the pathophysiology of Chiari I malformation regarding the spatial and temporal foramen magnum CSF flow patterns (Figs 1c - e).
Dynamic magnetic resonance imaging reveals difficulties in cerebrospinal fluid circulation in the foramen magnum territory and disappearance of preoperative plateau waves after posterior fossa reconstruction in patients with secondary cough headache (6).
Scoop out the brain from the foramen magnum, the "big hole" where the spinal column enters the base of the head.