DOI Seite / Zitierlink:
https://doi.org/10.11588/diglit.6271#0044
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which serve for the articulation of the head with the first ver-
tebra of the neck.
Processes. Upon the external surface. The occipital tuber-
ele, in the middle of the bone to which the ligamentmn nucha;
adheres ; a transverse spine, proceeding from each side of the
tubercle, to which the trapezius and complexus muscles are
attached;--a lesser transverse spine, below the former, for the
insertion of the recti muscles ;—a prominent ridge, running
downwards from the occipital tubercle, and forming, with
the above-mentioned ridges, a crucial spine;—the cuneiform^
or lasilary process, situated before the great foramen upon
which the basilary artery, and the medulla oblongata, lie ;—
two condyloid processes, or condyles, which are united to the
first vertebra of the neck;—-small elevations, about the fora-
men magnum, for the insertion of ligaments, by which the
head is attached to the vertebrae of the neck : there is also a
roughness round the roots of the condyles, for the attachment
of their capsular ligaments.-Upon the internal surface. An
internal crucial spine: the superior branch gives adhesion to
the longitudinal sinus of the dura mater, the two lateral to the
lateral sinuses, and the inferior to the septum cerebelli.
Cavities. The foramen magnum occipitale, through which
the spinal marrow proceeds mto the spine, an'1 the v rtebrai
arteries and accessory spinal nerves into the cranium ;—two
anterior condyloid foramina, for t'.e passage of the lingual
pair of nerves ;—two posterior condyloid foramina (which 'ire
sometimes wanting), for the passage of the capita! vein into
the lateral sinus ;—two notches, which, with two correspond-
ing notches of the temporal hones, form the foramina lacera
in basi cranii, for the passage of the blood from the lateral
sinuses into the jugular vein, and the exit of the par vagum:
—a considerable groove, leading to the above notches, iu
which serve for the articulation of the head with the first ver-
tebra of the neck.
Processes. Upon the external surface. The occipital tuber-
ele, in the middle of the bone to which the ligamentmn nucha;
adheres ; a transverse spine, proceeding from each side of the
tubercle, to which the trapezius and complexus muscles are
attached;--a lesser transverse spine, below the former, for the
insertion of the recti muscles ;—a prominent ridge, running
downwards from the occipital tubercle, and forming, with
the above-mentioned ridges, a crucial spine;—the cuneiform^
or lasilary process, situated before the great foramen upon
which the basilary artery, and the medulla oblongata, lie ;—
two condyloid processes, or condyles, which are united to the
first vertebra of the neck;—-small elevations, about the fora-
men magnum, for the insertion of ligaments, by which the
head is attached to the vertebrae of the neck : there is also a
roughness round the roots of the condyles, for the attachment
of their capsular ligaments.-Upon the internal surface. An
internal crucial spine: the superior branch gives adhesion to
the longitudinal sinus of the dura mater, the two lateral to the
lateral sinuses, and the inferior to the septum cerebelli.
Cavities. The foramen magnum occipitale, through which
the spinal marrow proceeds mto the spine, an'1 the v rtebrai
arteries and accessory spinal nerves into the cranium ;—two
anterior condyloid foramina, for t'.e passage of the lingual
pair of nerves ;—two posterior condyloid foramina (which 'ire
sometimes wanting), for the passage of the capita! vein into
the lateral sinus ;—two notches, which, with two correspond-
ing notches of the temporal hones, form the foramina lacera
in basi cranii, for the passage of the blood from the lateral
sinuses into the jugular vein, and the exit of the par vagum:
—a considerable groove, leading to the above notches, iu