skull

facial bones

-2 zygomatic bones
-2 maxillae
-2 nasal bones
-2 lacrimal bones
-2 palatine bones
-2 inferior conchae
-mandible
-vomer

cranial bones

-2 parietal bones
-2 temporal bones
-frontal bone
-occipital bone
-sphenoid bone
-ethmoid bone

Parts of the skull

calvaria (vault) and base of skull (cranial base)

upper part of cranial cavity

vault / calvaria

lower part of cranial cavity

cranial base

vault

cranial base

floor of the skull

what is the calvaria made up of

outer and inner lamina of compact bone separated by spongy bone

inner layer of compact bone of calvaria

inner table

outer layer of compact bone of calvaria

outer table

layer of spongy bone in calvaria

diploe

inner table

diploe

outer table

zygomatic bone

nasal bones

lacrimal bones

inferior view of vomer

facial view of vomer

palatine bones

inferior conchae

frontal bone

parietal bones

occipital bone

temporal bones

sphenoid bone

inferior view of sphenoid bone

ethmoid bone

orbital aperture

anterior nasal aperture

supraorbital margin

superciliary arch

Glabella

supraorbital notch

mental foramen

infraorbital foramen

nasal bones (anterior)

anterior nasal aperture is formed by

lower border of nasal bones with the maxillae

What divides the nasal cavity?

nasal septum

nasal septum is formed by

perpendicular plate of the ethmoid bone forms the superior). The vomer forms the inferior and posterior). Septal cartilage forms the anterior and inferior)

Zygomatic Bones
(anterior view)

sagital suture in skull

coronal suture

lambdoid suture

parietal foramen

metopic suture (frontal suture)

bregma

lambda

anterior fontanelle corresponds to which suture junction

bregma

posterior fontanelle corresponds to which suture junction

lambda

Lacrimal Bone (anterior view)

Lacrimal Bone
(lateral view)

temporal lines

superior and inferior

superior temporal line

inferior temporal line

temporal fossa

Temporal Fossa Boundaries

-anterior: frontal, zygoma bones
-superior and posterior: temporal lines
-inferior: zygomatic arch

pterion suture

trauma to pterion causes

tearing of middle meningeal vessels

temporo-mandibular joint

external acoustic meatus

mastoid process of temporal bone

styloid process of temporal bone

zygomatic arch of temporal bone

external occipital crest

external occipital protuberance

Inion definition

Most prominent point of external occipital protuberance

inion

inion importance

site for muscle and ligament attaachment

superior nuchal line

supreme nuchal line

inferior nuchal line

maxilla (inferior view)

Palatine bone (inferior view)

vomer (inferior)

sphenoid bone (inferior)

Temporal bone (inferior)

occipital bone inferior

palatine process of maxilla

horizontal plate of palatine bone

greater wing of sphenoid bone

petrous part of temporal bone

pterygoid plate of sphenoid

tympanic plate of temporal bone

3

squamous part of temporal bone

basilar part of occipital bone

condylar part of occipital bone

incisive fossa

connection of incisive fossa

lower openings of 2 incisive canals with corresponding halves of nasal cavity above

transmission of incisive fossa

greater palatine vessels and nasopalatine nerve branch

nasopalatine nerve branches from

maxillary nerve which branches from trigeminal nerve

greater palatine foramen

lesser palatine foramen

connection of GPF and LPF

inferior openings of greater palatine canal to pterygopalatine fossa

posterior nasal spine

posterior nasal aperture

pterygoid fossa

lateral pterygoid plate of sphenoid bone

medial pterygoid plate of sphenoid bone

foramen ovale of sphenoid bone