Showing posts with label Identifying Bones Of The Skull.. Show all posts
Showing posts with label Identifying Bones Of The Skull.. Show all posts

Wednesday, July 11, 2012

The Hyoid Bone




Fig. 51.
Hyoid bone, seen from the front.

Fig. 52.
Hyoid bone seen from the lateral side.

Fig. 53.
Median section through the hyoid bone (body).

Fig. 54.
Attachments on the hyoid bone seen from the anterosuperior aspect.

Fig. 55.
Schematic parasagittal section through the body of the hyoid bone, to show the arrangement  of structures attached.

Fig. 56.
Schematic vertical section through a greater cornu of the hyoid bone to show the arrangement of structures attached.

Tuesday, July 10, 2012

Foramina Of The Skull




Fig. 31.
Structures passing through the optic canal, the superior orbital fissure, and the inferior orbital fissure.

Fig. 32.
Structures passing through the foramen ovale, and through smaller foramina near it.
The lesser petrosal nerve sometimes passes through the canalis innominatus
.

Fig. 33.
Scheme to show structures passing through the carotid canal and the foramen lacerum.

Fig. 34.
Scheme to show structures passing through the jugular foramen.

Fig. 35.
Scheme to show the position of the opening of the inferior tympanic canaliculus,
and of the mastoid canaliculus.

Fig. 36.
Scheme to show the arrangement of structures passing  through the foramen magnum.

Monday, July 9, 2012

Cranial Fossae Of The Skull




Fig. 28.
Parts of the anterior and middle cranial fossae seen from above. Compare with Fig. 7.

Fig. 29.
Schematic diagram to show some features in the anterior wall of the middle cranial fossa.

Fig. 30.
Features to be seen in the floor of the middle and posterior cranial fossae

Wednesday, July 4, 2012

The Skull As Seen From Below




Fig. 21.
Anterior part of skull seen from below.

Fig. 22.
Scheme to show the bones around the posterior nasal aperture.

Fig. 23.
Schematic coronal section to show relatioship of the pterygoid process to the rest of the sphenoid bone.

Fig. 24.
Schematic transverse sectins to show the arrangement of the medial and lateral pterygoid plates
at (A) upper, (B) middle, and (C) lower levels
.

Fig. 25.
Part of the base of the skull  formed by the temporal and sphenoid bones. Some adjoining areas area also shown.

Fig. 26.
Posterior part of base of shull (formed by the temporal and occipital bones)

Fig. 27.
Attachments on the skull seen from below.

Features On The Skull As Seen From The Lateral Side




Fig. 14.
Sutures seen on the lateral aspect of the skull.

Fig. 15.
Some features seen on the lateral aspect of the skull. Also see Figs. 1, 5, 14, 16 & 17.

Fig. 16.
Additional features seen on the lateral aspect of the skull. Also see Figs. 1, 5, 14, 15 and 17.

Fig. 17.
Some details seen on the lateral aspect of the skull after removing the zygomatic arch.

Fig. 18.
Anterior wall of temporal and infratemporal fossae seen from behind. The zygomatic process of the temporal bone has  been removed and a coronal section cut through the middle cranial fossa

Fig. 19.
Scheme to show the walls of the pterygopalatine fossa

Fig.20.
Attachments on the skull seen from the lateral side.

Monday, July 2, 2012

Features On The Skull Seen From Above and Behind




Fig. 12.
Features seen on the skull when viewed from above.
Compare with Fig. 2.

Fig. 13.
Features seen on the skull when viewed from behind.
Compare with
Fig. 3.

Features On The Front Of The Skull




Fig. 8.
Some details of features of the skull as seen from the front. Compare with Figs. 4 and 11.

Fig. 9.
Schematic coronal section through the orbit and nasal cavity to show the bones related to them.

Fig. 10. Attachments on the anterior aspect of the skull.

Fig. 11.
The orbit and surrounding structures. The figure is schematic to the extent that all
features shown cannot be seen from one fixed angle of viewing.

Identifying Bones Of The Skull.




Fig. 1.Some features of the skull seen from the lateral side.

Fig. 2.Some features of the skull as seen from above. For details see Fig. 12.

Fig. 3.Some features of the skull seen from behind.For details see Fig. 13

Fig. 4.Some features of the skull seen from the front.For details see Fig. 8.

Fig. 5. Lateral view of the skull showing the position of individual bones.Further details in Fig. 14 to 17

Fig. 6.
Some features of the skull as seen from below.
Further details in Figs. 21 to 26.

Fig. 7.
Bones of the skull as seen in the floor of the cranial cavity. The skull is viewed from above after removing the skull cap.  For details see Figs. 28 to 30.