Flashcards in skull anatomy test study guide Deck (88)
How many bones make up the skull?
How many bones are cranial bones?
How many bones are facial bones?
The cranial bones are divided into two categories, what are they?
Calvaria and floor
Which bones are bones of the Calvaria?
Which bones are cranial floor bones?
Know what the Squama is on all bones?
The main portion of the bone. Body of bone.
What's the dipole?
Inner layer of spongy bone separating two outer plates of compact tissue
What are sutures?
Joints between the cranial bones
What are fontanelles?
Areas of incomplete ossification in infant skulls.
➡️There are 6.
Where's the coronal suture?
Between frontal and parietal bones
Where is the sagittal suture?
On top of head between two parietal bones
Where's the squamosal suture?
Between temporal bone and parietal bones
Where's the lambdoidal suture?
between occipital and parietal bone
What is the Bregma?
Junction of coronal and sagittal sutures
What is the lambda?
Junction of sagittal and lambdoidal sutures
When adult cranial size is usually achieved?
By age 12
What are the 3 general regions of the cranial floor?
◾️anterior cranial fossa
◾️ middle cranial fossa
◾️posterior cranial fossa
What's the glabella?
Smooth elevated arch between the supercillary arches
What are the orbital plates?
Roofs of the orbit
What's the supraorbital foramen?
Opening in the center of the margin
What's the supercillary arch?
Located where the eyebrows are
What are the supraorbital margins?
Superior part of orbit
What's the frontal eminence?
Rounded elevation on either side
What's the Squama?
Forms forehead and anterior part of cranial vault
What are the frontal bone parts?
What are some ethmoid parts?
◾️superior and middle nasal conchae
What's the superior and middle nasal conchae?
Two thin scroll shaped projections
What's the labyrinths?
Contains the ethmoid sinuses or air cells