Bones of the skull & faceYou will be responsible for identifying all of the bones in the cranium

and face

Use this power point to help identify

2

Cranium= brain case or helmet

The cranium is composed

of eight bones :

Parietal bone

Frontal bone

Coronal suture

Lacrimal bone

Ethmoid bone

Squamous suture

Sphenoid bone

Temporal bone

Perpendicular plate

of the ethmoid bone

Infraorbital foramen

Vomer bone

Mandible

Supraorbital foramen

Nasal bone

Sphenoid bone

Middle nasal concha

of the ethmoid bone

Inferior nasal concha

Maxilla

Mental foramen

Zygomatic bone

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3

Cranium

• Frontal Bone (1): Parietal bone

Frontal bone

Coronal suture

Lacrimal bone

Ethmoid bone

Squamous suture

Sphenoid bone

Temporal bone

Perpendicular plate

of the ethmoid bone

Infraorbital foramen

Vomer bone

Mandible

Supraorbital foramen

Nasal bone

Sphenoid bone

Middle nasal concha

of the ethmoid bone

Inferior nasal concha

Maxilla

Mental foramen

Zygomatic bone

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

4

Cranium

• Parietal Bones (2):

Coronal suture

Frontal bone

Sphenoid bone

Ethmoid bone

Lacrimal bone

Nasal bone

Zygomatic bone

Maxilla

Mental foramen

Mandible

Coronoid process

Styloid process

Mandibular condyle

Mastoid process

External acoustic meatus Temporal process

of zygomatic bone

Zygomatic processof temporal bone

Occipital bone

Temporal bone

Parietal bone

Lambdoid suture

Squamous suture

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Skull

5

SuturesCoronal Suture

Frontal bone

Parietal bones

9

Cranium

• Occipital Bone (1):

Zygomatic bone

Palatine process of maxilla

Palatine bone

Occipital bone

Foramen magnum

Lambdoid suture

Zygomatic arch

Mandibular fossa

Styloid process

Occipital condyle

External acoustic meatus

Sphenoid bone

Vomer bone

Temporal bone

Mastoid foramen

Frontal boneMedian palatine suture

Incisive foramen

Greater palatine foramen

Stylomastoid foramen

Foramen spinosum

Carotid canal

Jugular foramen

Foramen ovale

Foramen lacerum

Condylar canal

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

SuturesLambdoid Suture

Occipital bone Parietal bones

Fig. 7.14Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Sutural

bones

Parietal bone

Occipital bone

Temporal bone

SuturesSagittal Suture

Parietal bones

13

Cranium

• Temporal Bones (2):

Coronal suture

Frontal bone

Sphenoid bone

Ethmoid bone

Lacrimal bone

Nasal bone

Zygomatic bone

Maxilla

Mental foramen

Mandible

Coronoid process

Styloid process

Mandibular condyle

Mastoid process

External acoustic meatus Temporal process

of zygomatic bone

Zygomatic process

of temporal bone

Occipital bone

Temporal bone

Parietal bone

Lambdoid suture

Squamous suture

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

SuturesSquamous Suture

Parietal bone Temporal bone

15

Facial Skeleton

• Maxillae Bones (2)

Coronal suture

Frontal bone

Sphenoid bone

Ethmoid bone

Lacrimal bone

Nasal bone

Zygomatic bone

Maxilla

Mental foramen

Mandible

Coronoid process

Styloid process

Mandibular condyle

Mastoid process

External acoustic meatus Temporal

process

of zygoma

Zygomatic process

of temporal bone

Occipital bone

Temporal bone

Parietal bone

Lambdoid suture

Squamous suture

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Maxillae

Fig. 7.17Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Parietal bone

Frontal bone

Coronal suture

Lacrimal bone

Ethmoid bone

Squamous suture

Sphenoid bone

Temporal bone

Perpendicular plate

of the ethmoid bone

Infraorbital foramen

Vomer bone

Mandible

Supraorbital foramen

Nasal bone

Sphenoid bone

Middle nasal concha

of the ethmoid bone

Zygomatic bone

Inferior nasal concha

Maxilla

Mental foramen

19

Facial Skeleton

• Mandible Bone (1)Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Coronoid process

Mandibular

foramen

Alveolar

arch

Coronoid

process

Body

(a)(b)

Mental foramen

Alveolar

process

Ramus

Mandibular

foramenMandibular condyle

Body

20

Facial Skeleton

Coronal suture

Frontal bone

Sphenoid bone

Ethmoid bone

Lacrimal bone

Nasal bone

Zygomatic bone

Maxilla

Mental foramen

Mandible

Coronoid process

Styloid process

Mandibular condyle

Mastoid process

External acoustic meatus Temporal

process

of zygoma

Zygomatic process

of temporal bone

Occipital bone

Temporal bone

Parietal bone

Lambdoid suture

Squamous suture

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

• Zygomatic Bones (2)• Prominences of cheeks

• Lateral walls of orbits

• Floors of orbits

• Temporal process

Frontal bone

Fig. 7.18 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Supraorbital notch

Optic canal

Nasal bone

Ethmoid bone

Lacrimal bone

Maxilla

Infraorbital foramenZygomatic bone

Inferior orbital

fissure

Palatine bone

Sphenoid bone

Superior orbital

fissure

Frontal bone

Fig. 7.19Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Coronoid process

Zygomatic process

of temporal bone

Styloid process

Mandibular condyle

Mastoid process

External acoustic meatus

Temporal bone

Occipital bone

Lambdoid suture

Squamous suture

Parietal boneCoronal suture

Frontal bone

Sphenoid bone

Ethmoid bone

Lacrimal bone

Nasal bone

Zygomatic bone

Temporal process

of zygomatic bone

Maxilla

Mental foramen

Mandible

Parietal bone

Fig. 7.20 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Frontal sinus

Maxillary sinus

Sphenoidal sinus

Ethmoidal air cells

Fig. 7.21Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Incisive foramen

Palatine process of maxilla

Median palatine suture

Palatine bone

Greater palatine foramen

Foramen lacerum

Foramen ovale

Foramen spinosum

Carotid canal

Jugular foramen

Stylomastoid foramen

Foramen magnum

Lambdoid suture

Condylar canal

Occipital bone

Zygomatic bone

Frontal bone

Sphenoid bone

Zygomatic arch

Vomer bone

Mandibular fossa

Styloid process

External acoustic meatus

Occipital condyle

Mastoid foramen

Temporal bone

Occipital bone

Foramen magnum

Jugular foramen Internal acoustic meatus

Hypoglossal canal

Fig. 7.25Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Optic canal

Foramen rotundum

Foramen ovale

Foramen lacerum

Internal acoustic

meatus

Jugular foramen

Occipital bone

Foramen magnum

Parietal bone

Foramen spinosum

Temporal bone

Sella turcica

Superior orbital fissure

Sphenoid bone

Frontal bone

Ethmoid

bone

Crista galli

Cribriform plate

Olfactory foramina

Fig. 7.27Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Temporal bone

Parietal bone

Squamous suture

Lambdoid suture

Occipital bone

Internal acoustic meatus

Jugular foramen

Sella turcica

Hypoglossal canal

Foramen magnum

Mastoid process

Alveolar processes

Vomer bone

Palatine bone

Sphenoidal sinus

Styloid process

Coronal suture

Frontal bone

Sphenoid bone

Frontal sinus

Nasal bone

Ethmoid

bone

Maxilla

Mandible

Inferior nasal concha

Palatine process

of maxilla

Crista galli

Cribriform plate

Perpendicular plate

(nasal septum)

Zygomatic bone

Table 7.6

Table 7.7