105- Skull Test Flashcards
How many bones are in the skull
22
How many cranial and facial bones are in the skull
8 cranial
14 facial
Bones that make up the calvaria
Frontal, occipital, rt and lt parietal
Bones that make up the cranial floor
Ethmoid, sphenoid, rt and lt temporal
Where is the coronal suture found
Between the frontal and parietal bones
Where is the Sagittal suture found
On top of head, between the two parietal bones
Where is the squamosal suture found
Between the temporal and parietal bones
Where is the lambdoidal suture found
Between the occipital and parietal bones
Where is the bregma found
Junction of the coronal and sagittal sutures
Where is the lambda found
Junction of the lambdoidal and sagittal sutures
Where is the pterion found
Junction of parietal bone, squamosal suture,& greater Wing of sphenoid
Where is the asterion found
Junction of occipital and parietal bones, & mastoid portion of temporal bone
The anterior fontanel is at the
Bregma
The posterior fontanel is at the
Lambda
The sphenoidal fontanels are at the
Pterion
The mastoid fontanels are at the
Asterion
The posterior and sphenoidal fontanels close around
1-3 months after birth
The anterior and mastoid fontanels close during
Second year of life
Adult size and density of the skull are achieved by age
12
The average cranium measures __inches wide
6
The average cranium measures __inches long (front to back)
7
The average cranium measures __inches deep (top to bottom)
9
The length and width of normally shaped skulls may vary by___
1 inch
What are the names of the auditory ossicles
Malleus, incus, stapes
