Head Flashcards
Excluding the auditory ossicles, how many bones form the skull?
22 bones
How many bones form the neurocranium?
8 bones
What bones form the neurocranium?
Frontal Parietal Occipital Temporal Sphenoid Ethmoid
How many bones form the facial skeleton?
14 bones
What bones form the facial skeleton?
Mandible Vomer Nasal Maxilla Lacrimal Inferior nasal concha Palatine Zygomatic
What are the four subclassifications of synarthrosis joints joints based on Latin groupings?
Suture
Gomphosis
Schindylesis
Syndesmosis
What were the five types of suture based on Latin groupings?
Serrate Denticulate Limbous Squamous Harmonia
What are the characteristics of sutura vera (true sutures)?
Sutures demonstrating interlocking of the adjacent bone surfaces; typically formed by intramembranous ossification
What are the characteristics of sutura notha (false sutures)?
Sutures lacking interlocking of adjacent bone surfaces; typically formed by endochondral ossification
What were the ossifications of sutura vera (true sutures) based on Latin groupings?
Serrate
Denticulate
Limbous
What were the classifications of sutura notha (false sutures) based on Latin groupings?
Squamous
Harmonia
What are the typical examples of the plane suture or harmonia suture?
Cruciate suture made of the intermaxillary, interpalatine, palato-maxillary sutures
What are the typical examples of the plane suture or harmonia suture?
Sphenoid-ethmoid-vomer articulation
Palatine-maxila-vomer articulation
What are the examples of the gomphosis joint?
Maxilla - root of tooth
Mandible - root of tooth
What are the five views of the skull called?
Norma verticalis Norma frontalis Norma occiptalis Norma lateralis Norma basalis
What is the diamond shaped remnant of developing membrane bone at the intersection of the frontal bone with both parietal bones?
Anterior fontanelle
What is the posterior fontanelle?
Diamond shaped remnant of developing membrane bone at the intersection of the occipital bone with both parietal bones
What is the diamond shaped remnant of developing membrane bone at the intersection of the occipital bone with both parietal bones?
Posterior fontanelle
What is the name given to the outline of the nasal cavity at the front of the skull?
Piriform aperture
What is the name given to the alveolar jugum of the canine tooth in the maxilla?
Canine eminence
What forms the bullet-like chin?
Large mental protuberance
What forms the indented chin?
Well developed bilateral mental tubercles
Slight mental protuberance
What is the tip of the external occipital protuberance called?
Inion
What bones form the pterion?
Parietal
Temporal
Sphenoid
Frontal
What points on the skull are used to measure the skull size?
Nasion
Vertex
Inion
Gnathion
What points on the skull are used to measure cranial vault capacity?
Nasion
Vertex
Inion
The olfactory nerve exits the cranial vault via what opening?
Cribriform plate of the ethmoid bone
What passes through the formen cecum?
Emissary vein
What is the anterior boundary of the middle cranial fossa?
Lesser wings of sphenoid
Anterior clinoid processes of sphenoid
Sphenoidal jugum of sphenoid