Page 134 - Edited - Webster HEAD AND NECK - part 1

HN 112

CORONAL THE FRONTAL BONE HN 112
SUTURE (B) SUPERIOR VIEW

PARIETAL TEMPORAL
LINE FRONTAL
BONE
BONE
CORONAL
SUTURE K.E.W.

BREGMA
SAGITTAL
SUTURE PARIETAL PARIETAL
MAXILLA
BONE BONE
K.E.W. LAMBDOID (L) (R)
(A) LATERAL VIEW
SUTURE
PARIETAL
LAMBDA EMINENCE

(C) REPRESENTATION OF OCCIPITAL BONE
FRONTAL BONE SEEN FROM
LEFT POSTERIOR GROOVE FOR SUPERIOR
SAGITTAL VENOUS SINUS CORONAL SUTURE →
PARIETAL BONE

Notice that the
frontal bone: Forms
part of the cranial
vault and also (in FOR GREATER WING OF
orbital plate) part of SPHENOID BONE
the FLOOR of the FOR LESSER WING OF
cranial cavity SPHENOID BONE
ETHMOID FITS IN HERE: ROOF OF NASAL CAVITY
ORBITAL PLATE OF FRONTAL BONE:
ROOF OF ORBIT [cf. HN esp.Fig. III A-A]
The frontal bone develops as two (R & L) bones. - c.f. Fig B(ii)).
The line of junction - the metopic suture - disappears by the age
of 6 or 7 years

(D) THE REMAINDER OF THE FLOOR OF THE
CRANIAL CAVITY MUST BE FORMED BY
BONES VISIBLE ON THE INFERIOR SURFACE OF
THE CRANIUM, viz:

S - SPHENOID
T - TEMPORAL S T
O - OCCIPITAL
as on & (A) above. T

SEE OVER!! K.E.W.