SKULL Flashcards
Skull contains ____ bones divided into the cranial and facial bones
22
How many cranial bones are in the skull? How are they divided?
8 cranium bones divided into calvaria and floor
Which bones articulate with the parietal bone?
Frontal Temporal Occipital Sphenoid And opposite parietal bones
What foramen is in the occipital bone and what passes through it?
Foramen magnum, the inferior portion of the medulla oblongata passes through to join the spinal cord
The ethmoid bone has two lateral masses called
Labryinths
What bones do the sphenoid bone articulate with?
All other 7 bones of the cranium
The ________ of the temporal bones contains organs of hearing and balance
Petromastoid portion
The occipital bone articulates with
Parietals
Temporals
Sphenoid
C1
What is the function of facial bones?
Provide shape and support for the face
Cranial and facial bones are joined by fibrous joints called
Sutures (except for mandible)
The junction of the coronal and sagittal suture
Bregma
The junction of lambdoidal and sagittal suture
Lambda
The junction of the parietal, squamosal, and greater wing of sphenoid
Pterion
The junction of the occipital, parietal, and mastoid portion of the temporal bone
Asterion
How many incomplete ossifications are there in a newborns skull?
6 called fontanels