The skull Flashcards
What kind of joint are found in the skull?
Suture joints
where is the lomboid suture
between parietal and occipital bones
where is the coronal suture?
between the parietal and frontal bones
where is the sagittal suture?
between the parietal bones
what kind of joints are sutures?
fibrous joints
what are fontanelles?
they are embryological structure which close up as the brain is developing
when do the anterior and posterior fontanelles close up?
anterior: 2 years
Posterior: 2-3 years
what kind of bone makes up the skull
2 layers of hard bone with dipole in the middle
divisions of the skull
Neurocranium: Lateral aspect
Facial skull: Frontal aspect
Mandible
which are the bones of the frontal part of the skull
- mandible
- maxilla
- zygomatic
- lacrimal
- ethmoid
- nasal
irregular bones of the skull
- occipital protruberance
- mastoid process
- styloid process
- zygomatic arch
- occipital condyles
Floor of the skull divisions
anterior
middle
posterior
borders of anterior portion of the skull
anterior: frontal bone
posterior: lesser wing of sphenoid
borders of middle portion of skull
anterior: greater wing of sphenoid
Lateral: squamous part of temporal bone
posterior: petrous part pf temporal bone
borders of posterior portion of skull
anterior/medial: dorsum sellae of sphenoid
anterior/lateral: petrous part of temporal bone
posterior: squamous part of occipital
