In anatomy, the foramen magnum (Latin: `great hole`) is a large opening in the occipital bone of the cranium. It is one of the several oval or circular apertures in the base of the skull (the foramina), through which the spinal cord (an extension of the medulla oblongata) enters and exits the skull vault. Apart from the transmission of the medul.....
(from the article `skull`) In humans the base of the cranium is the occipital bone, which has a central opening (foramen magnum) to admit the spinal cord. The parietal and ... The posterior cranial fossa is above the vertebral column and the muscles of the back of the neck. The foramen magnum, the opening through which the ... bone ...
The hole at the base of a skull through which the spinal cord passes. Literally, foramen magnum means a 'large hole or opening' in Latin. The position of the foramen magnum is a strong indicator of the angle of the spinal column to the head and subsequently whether the body is habitually horizontal ...
<anatomy> The large hole at the base of the skull which allows passage of the spinal cord. ... (12 Dec 1998) ... 
(fo-ra´mәn mag´nәm) a large opening in the anterior inferior part of the occipital bone, between the cranial cavity and spinal canal.
the opening in the posterior of the skull through which the spinal cord passes.
The hole in the base of the skull through which the spinal cord passes
Type: Term Definitions: 1. the large opening in the basal part of the occipital bone through which the spinal cord becomes continuous with the medulla oblongata. Synonyms: great foramen
Foramen magnum: The large hole at the base of the skull which allows passage of the spinal cord.
Large opening in the back of the skull, through which the spinal cord leaves the brain. The occipital condyles lie on either side.
[n] - the large opening at the base of the cranium through which the spinal cord passes
noun the large opening at the base of the cranium through which the spinal cord passes
the large opening in the base of the skull forming the passage from the cranial cavity to the spinal canal.
The large opening in the back of a skull through which the spinal cord passes to become the medulla oblongata of the brain.