Skull Bones and Landmarks

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SKULL BONES Frontal bone Supraorbital Parietal bone T cmp0ra| fossa Coronal suture. \ Pterion, \ \ Superior temporal line Inferior temporal line Temporal bone notch (foramen) Glabella Ethmoid bone Lacrimal bone Nasal bone- Sphenoid bone Zygomatic bone Maxilla Mandible \ \ \ Frontal bone Glabella Supraorbital notch (foramen) Orbital surface Nasal bone Lacrimal bone Zygomatic bone Maxilla Occipital bone Groove for superior sagittal sinus . . Frontal crest Frontal bone\ Groove for anterior meningeal vessels Foramen cecum Superior surface of orbital part Ethmoid bone- Crista galli Cribriform plate* Coronal suture Parietal bone Sphenoid bone Temporal bone Ethmoid bone inferior nasal com ha Vomer a

description

Skull Bones and Landmarks

Transcript of Skull Bones and Landmarks

Page 1: Skull Bones and Landmarks

SKULL%BONES%

Frontal bone

Supraorbital

Parietal bone Tcmp0ra| fossaCoronal suture. \

Pterion, \ \ Superior temporal lineInferior temporal line

Temporal bonenotch (foramen)

Glabella

Ethmoid bone

Lacrimal bone

Nasal bone-

Sphenoid bone

Zygomatic boneMaxilla

Mandible

\

\

\

Frontal bone

Glabella

Supraorbitalnotch (foramen)

Orbital surface

Nasal bone

Lacrimal bone

Zygomatic bone

Maxilla

Occipitalbone

Groove for

superiorsagittal sinus

. . Frontal crest

Frontal bone\Groove for anterior

meningeal vesselsForamen cecum

Superior surface of orbital partEthmoid bone-

Crista galli

Cribriform plate*

Coronal suture

Parietal bone

Sphenoid bone

Temporal bone

Ethmoid bone

inferior nasal com ha

Vomer

a

bangity
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Page 2: Skull Bones and Landmarks

SKULL%BONES%

Superior view

Inferior view

- S~

Frontal crest

Frontal bone

Groove for

superiorsagittal sinus

Frontal bone

Coronal suture

BregmaParietal bone

Sagittal suture

Parietal foramen

(for emissary vein)

Lambda

Lambdoid suture

Coronal suture

Parietal bone

Granular foveolae

(for arachnoid granulations)V: Diploe- Grooves for branches of

middle meningeal vessels

Grooves for

Sagittal suture branches of middle

Lambdoid suture

Occipital bone Coronalsuture

Occipital bone

Parietal bone

Temporal bone

Sphenoid bone

Frontal bonefrontal sinus

Ethmoid bone

Crista galliCribriform plate

Perpendicular plate -Nasal bone

Inferior nasal concha

Maxilla

/

r .

]Palatine bone

Vomer

Internal

acoustic meatus

Lambdoid

suture

; Occipitalbone

bangity
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bangity
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Page 3: Skull Bones and Landmarks

LANDMARKS%

pterion: point of temporal, sphenoid and parietal bones

bregma: point of coronal and saggital sutures

nasion: frontonasal suture

Craniomefric Points. Lateral View

pterion

frontotemporale

glabella

nasion

ectoconchion

FRANKFORT PlANE-orbitale to porlon

olarenasospinale

prosthlonalveolare

incision 'Infradentale

pogonlon

vertexDieama apex

1

lambda

opisthocranion

condylion

mastokjale

ectomolare

- gonlon

Page 4: Skull Bones and Landmarks

MANDIBLE%

Condylar processCoronoid process

Mylohyoid groove

Oblique lineSubmandibular fossa

Mylohyoid

Sublingual fossa

Interalveolar septa.vi

Head

Pterygoid foveaNeck

M<indil)ul<ir nott h

I inyulaMandibular foramen

Ramus

Alveolar part (crest)

Mental protuberanceMental tubercle

Base of mandible

rI

i

A/

/

/

Angl

Body

Mandible of adult:

anterolateral superior view

Coronoid process.Head.Neck

Mandibular notch

Pterygoid fovea

Mylohyoid lineRamus

rI/

ly Condylar processy' -Lingula

Mandibular foramen

Mylohyoid groove

Angle

Submandibular fossav

Mandible of adult:

left posterior view

Sublingual fossa-Digastric fossa

Mental spines

Page 5: Skull Bones and Landmarks

MAXILLA%

Frontal bone

Nasal bone

Lacrimal bone

Zygomatic bone

Parietal bone

Sphenoid bone-

Temporal bone

Ethmoid bone

Inferior nasalconcha

Maxilla

Zygomatic process

Orbital surface

Infraorbital foramen

Frontal process

Alveolar pn

¥..

....

rVomer

MandibleV

Central incisors

Incisive lossaLateral incisors

Canines

ftilatine process ofmaxilla I si premolars

IB

2nd premolars

-1 st molarsV

JV

la

IK

Anterior nasal spine

Horizontal plate ofpalatine bone

2nd molars

3rd molars

Greater and lesser palatine| foramina

Upper permanent teeth4

Page 6: Skull Bones and Landmarks

OCCIPITAL%

Frontal bone

Temporal boneEthmoid bone

Lacrimal bone

Nasal bone

Sphenoid bone

Zygomatic bone

Maxilla

Mandible-

V

Parietal bone

Occipital bone

External occipital protuberance

Transverse palatine suture

Zygomatic bone JFrontal bone

Sphenoid bone

Temporal bone

Jugular fossa (jugularforamen in its depth)

.2

Parietal bone

Occipital bone

Hypoglossal canaPOccipital condyle'

Condylar canal and fossa'Basilar part'

Inferior nuchal line'

Superior nuchal lineExternal occipital protuberance

Maxilla

Palatine bone

Vomer

\- Pharyngeal tubercle

Foramen magnum

External occipital c rest

f

Page 7: Skull Bones and Landmarks

SPHENOID%

Sellaturcica -

Sphenoid boneLesser wing

Anterior clinoid processGreater wing

Groove for middle meningealvessels (frontal branches)

Body Jugum

Prechiasmatic grooveTuberculum sellae

Hypophyseal fossaDorsum sellae

Posterior clinoid process

Carotid groove (for int. carotid a.)

Parietal bone Temporal bone

Frontal bone

Ethmoid bone.tilX

with

o

Occipital bone

Clivus

Pterygoid process-

Frontal bone

Sphenoid bone

I lamulus

Medial platePterygoid fossa

Lateral plateScaphoid fossa

Greater wingForamen ovale

Foramen spinosumSpine

Temporal bone

Vomer

T

-

-

Maxilla

Palatine bone

Zygomatic bone

Occipital bone

Page 8: Skull Bones and Landmarks

ZYGOMATIC%TEMPORAL%

temporal process

styloid process

I'tcrion

Frontal boneN

Sphenoid bone

Ethmoid bone,.

Lacrimal bone - N, \

Nasal bone

Maxilla-

Zygomatic bone

Parietal

bone

V

Temporal boneSquamous part

Zygomatic processArticular tubercle

External acoustic meatus

-jf-Mandible

Mastoid processLambdoid suture

Occipital bone

-I

Temporal bone

Squamous part

Petrous partGroove for lesser petrosal n.

Groove for greater petrosal n.-Trigeminal impression.

Arcuate eminence-

Groove for superior petrosal sinusGroove for sigmoid sinus

[Zygomatic bone

Frontal bonev \Sphenoid bone

Temporal boneZygomatic processArticular tubercle

Mandibular lussciNStyloid process

Petrotympanic fissureCarotid canal (external opening)

Tympanic canaliculusExternal acoustic meatus

Mastoid processStylomastoid foramen

Petrous partMastoid notch (for digastric m.)

Occipital groove (for occipital a.)Jugular fossa (jugular foramen in its depth)

Mastoid foramenParietal bone

1

Maxilla

Palatine bone

Vomer

Foramen lacerum

Groove for pharyngotympanic(auditory) tube

C\- ' with

Occipital bone