What is the thickest part of the skull & found on what bone?
The Petrous Ridges on the Temporal Bone
What are the 6 Sutural Junctions?
BREGMA--coronal/sagittal suture junction; LAMBDA--sagittal/lambdoidal; 2 PTERION--Anterior junction of the squamosal,parietal, & sphenoid; 2 ASTERION--Posterior junction of Squamosal: occipital, parietal, mastoid portion of temporal bone
What are the 3 regions of the Floor of the Skull? How are they divided?
ANTERIOR Cranial Fossa--Frontal/L. wing Sphenoid MID Cranial Fossa--L. Wings Sphenoid to Apices of Petrous Ridges POSTERIOR Cranial Fossa--Deep depression posterior to petrous ridges thru occipital bone
What are the 5 main sutures of the skull?
CORONAL--between frontal/parietal bones; SAGITTAL--top of head between 2 parietal bones; 2 SQUAMOSAL--between temporal/parietal bones R/L; LAMDOIDAL--between occipital/parietal bones
What are the purpose of the nasal conchae?
Are they considered Facial or Cranial bones?
The nasal conchae warm/cool the air--look like scrolls
The Inferior Nasal Conchae are considered facial bones (while the Mid & Superior are considered Cranial--part of Spheniod bone)
What does it mean if an infant's fontanels are bulging?
Too much cranial pressure
What bones comprise our cheek bones?
The R. & L. Zygomatic bones (Lateral to the Maxilla & part of the lateral orbit; has 3 processes)
What is Craniostosis ("Cloverleaf")?
When sutures prematurely go away. It inhibits brain growth--may need surgery to re-open. Can cause Microcephalus
