Chapter 7
The Skeleton
203
7
nucha
5
back of the neck), a sheetlike elastic ligament that
connects the vertebrae of the neck to the skull. Te nuchal
lines, and the bony regions between them, anchor many neck
and back muscles. Te superior nuchal line marks the upper
limit of the neck.
the most bulging part of your posterior skull. A number of
inconspicuous ridges, the
external occipital crest
and the
su-
perior
and
inferior nuchal lines
(nu
9
kal), mark the occipital
bone near the foramen magnum. Te external occipital crest
secures the
ligamentum nuchae
(lig
0
ah-men
9
tum noo
9
ke;
Parietal bone
Squamous part
of frontal bone
Nasal bone
Sphenoid bone
(greater wing)
Temporal bone
Ethmoid bone
Lacrimal bone
Zygomatic bone
Maxilla
Mandible
Infraorbital foramen
Mental
foramen
(a) Anterior view
Mandibular
symphysis
Frontal bone
Glabella
Frontonasal suture
Supraorbital foramen
(notch)
Supraorbital margin
Superior orbital
fissure
Inferior orbital
fissure
Middle nasal concha
Inferior nasal concha
Vomer
Optic canal
Perpendicular plate
Ethmoid
bone
Lambdoid
suture
Occipital bone
Superior nuchal line
External
occipital
protuberance
Sutural
bone
Occipitomastoid
suture
(b) Posterior view
Occipital
condyle
External
occipital
crest
Inferior
nuchal line
Mastoid
process of
temporal
bone
Parietal bone
Sagittal suture
Figure 7.4
Anatomy of the anterior and posterior
aspects of the skull.
(For related images, see
A Brief
Atlas of the Human Body
, Figures 1 and 7.)
(Text continues on p. 208.)
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