8. Skull Anatomy Flashcards
Neurocranium relates to the _
brain
cranial vault
cranial base
Viscerocranium relates to the _
face
Name the 3 fossae of the cranial base
Anterior
middle
posterior
T/F There are 24 bones in the adult skull
False (22)
How many paired and unpaired bones in the adult skill?
8 paired
6 unpaired
7 bones make up the ear orbit, what are they?
Frontal zygomatic sphenoid ethmoid lacrimal maxilla palatine
Sutures are a type of _ joint
fibrous
_ are open spaces filled with fibrocartilage
fontanelles formed by intramembranous ossification
_ is malfusion of the palate
orofacial clefting
Craniosynostosis is _
premature fusion of cranial sutures
Name 4 spaces (sinuses) in the skull
maxillary
sphenoidal
ethmoid
frontal
Anterior midline point of foramen magnum is _
Basion
Intersection of coronal and sagittal sutures
Bregma
Most anterior midline point on frontal bone
Glabella
Most anterior midline point on the mandible
gnathion
Most inferior lateral point on the mandibular angle
gonion
Most inferior midline point on the external occipital protuberance
Inion
Intersection of sagittal and lambdoid sutures
lambda
Superior intersection of nasal and frontal bones
nasion
Most superior lateral aspect of the external acoustic meatus (ear canal)
Porion
Intersection of frontal, parietal, temporal, and sphenoid bones
Pterion
