SKULL Flashcards
The 3 Layers of the Cerebral Cranium
OUTER TABLE/ OUTER COMPACT LAYER
INNER COMPACT LAYER
DIPLOE
It is the outer covering of the brain.
OUTER TABLE/OUTER COMPACT LAYER
Layer of the Cerebral Cranium that is spongy and is most bloody
DIPLOE
The inner layer covering the brain
INNER COMPACT LAYER
It is the point where the sagittal suture meets the lambdoidal suture and becomes filled in with bone at about 6 months and is called “Lambda”.
Posterior/Occipital Fontanel
Is the small gap on the posterior surface of the skull at the junction of the two parietal bones with the occipital bone.
POSTERIOR/OCCIPITAL FONTANEL
This is the junction of the coronal and sagittal suture called “Bregma”.
ANTERIOR/FRONTAL FONTANEL
Lies at the junction of the two parietal bones with the frontal bone at the midline of the vertex.
ANTERIOR/FRONTAL FONTANEL
are gaps in the skull of infants between the angles formed at the junctions of the parietal, frontal and occipital bones.
FONTANEL/FONTANELLE
forms the joint between the lateral borders of the parietal bone and the upper border of the temporal bone on each side.
SQUAMOUSAL SUTURE
This lies on the lateral wall of the skull above and behind the ear
SQUAMOUSAL SUTURE
is the joint between the posterior borders of the two parietal bones and upper border of the occipital bone.
LAMBDOIDAL SUTURE
This form a curved line on the posterior surface of the skull and meets the posterior end of the sagittal suture in the midline.
LAMBDOIDAL SUTURE
is the joint between the posterior border of the frontal bone and the anterior borders of the parietal bones.
CORONAL SUTURE
They crosses the roof/vertex of the skull transversely and meet the sagittal suture at right angle.
CORONAL SUTURE
is the joint between the upper adjacent borders of the two parietal bones that extends from front to back along the midline of the vertex of the skull
SAGITTAL SUTURE
are special interlocking immovable joints between the cranial bones that looks like a saw teeth of one bone which fit into small indentations of the adjacent bones.
SUTURES OF THE SKULL
are paired cavities within some of the cranial and facial bones which have an openings into the nasal cavities and filled with air.
PARANASAL SINUSES
are cavities within the frontal bone that extend up into the squamous part forming the forehead.
FRONTAL SINUSES
are large cavities in each maxilla that lie behind the soft tissue of the cheek and lateral to the nasal cavities.
MAXILLARY SINUSES
are groups of small cavities lying in the lateral wall of the nasal cavities on each side.
ETHMOID SINUSES
are two cavities on each side in the body of the Sphenoid bone.
SPHENOID BONE
They lie under the Sella Turcica behind the nasal fossae and are visible on Open mouth view.
SPHENOID SINUSES
is an opening on the inner side of each ramus which lead into the mandibular canal for the mandibular nerve.
MANDIBULAR FORAMEN
is a half-moon shaped notch between the Coronoid and Condyloid processes.
MANDIBULAR NOTCH
is the constricted part between the Capitulum and the remainder of the condyloid process.
NECK
is the slightly expanded upper end of the condyloid process that articulate with the Temporal bone at the “Temporo-Mandibular Joint”.
CAPITULUM
