Bones Of The Skull

Front 1

Helps to form the anterior cranial fossa; forms part of the nasal septum and the lateral walls and roof of the nasal cavity ; contributes to the medial wall of the orbit

Back 1

Ethmoid

Front 2

Found in middle ear cavity; involved in sound transmission

Back 2

Ear ossicles

Front 3

Attachment point for the falx cerebri, a dural membrane

Back 3

Crista galli

Front 4

Allows passage of nerve filaments of the olfactory nerves (cranial nerve I)

Back 4

Cribriform plate

Front 5

Form part of lateral walls of nasal cavity; increase turbulence of air flow

Back 5

Superior and middle nasal conchae

Front 6

Forms forehead; superior part of orbits and anterior cranial fossa; contains sinuses

Back 6

Frontal

Front 7

Forms most of the superior and lateral aspects of the skull

Back 7

Parietal

Front 8

Forms posterior aspect and most of the base of the skull

Back 8

Occipital

Front 9

Forms inferolateral asects of the skull and contributes to the middle cranial fossa; has squamous, mastoid, tympanic,and petrous regions

Back 9

Temporal

Front 10

Keystone of the cranium; contributes to the middle cranial fossa and orbits; main parts are the body, greater wings, lesser wings, and pterygoid processes

Back 10

Sphenoid

Front 11

Allow the superorbital arteries and nerves to pass.

Back 11

Superorbital foramina

(notches)

Front 12

Allows the spinal cord to issue from the brain stem to enter the vertebral canal

Back 12

Foramen magnum

Front 13

Allows passage of the hypoglossal nerve
(cranial nerve XII)

Back 13

Hypoglossal canal

Front 14

Articulate with the atlas
(first vertebra)

Back 14

Occipital condyles

Front 15

Sites of muscle aatachment

Back 15

External occipital protuberance and nuchal lines

Front 16

Attachment site of ligamentum nuchae

Back 16

External occiptal crest

Front 17

Helps to form the zygomatic arch, which forms the prominence of the cheek

Back 17

Zygomatic process

Front 18

Articular point of the mandibular condyle

Back 18

Mandibular fossa

Front 19

Canal leading from the external ear to the eardrum

Back 19

External auditory (acoustic) meatus

Front 20

Attchment site for hyoid bone and several neck and several neck muscles

Back 20

Styloid process

Front 21

Attachment site for several neck and tongue muscles

Back 21

Mastoid process

Front 22

Allows cranial nerve VII
(facial nerve) to pass

Back 22

Stylomastoid foramen

Front 23

Allows passage of the internal jugular vein and cranial nerves IX, X, and XI

Back 23

Jugular foramen

Front 24

Allows passage of cranial nerves VII and VIII

Back 24

Internal acoustic meatus

Front 25

Allows passage of internal carotid artery

Back 25

Carotid canal

Front 26

Hypophyseal fossa portion is the seat of the pituitary gland

Back 26

Sella turcica

Front 27

Allow passage of cranial nerve II and the opthalmic arteries

Back 27

Optic canals

Front 28

Allow passage of cranial nerves III,IV, VI, part of V
(opthalmic division), and opthalmic vein

Back 28

Superior orbital fissures

Front 29

Allows passage of the maxillary division of cranial nerve V

Back 29

Foramen rotundum

Front 30

Allow passage of the mandibular division of cranial nerve V

Back 30

Foramen ovale

Front 31

Allows passage of the middle meningeal artery

Back 31

Foramen spinosum

Front 32

The lower jaw

Back 32

Mandible

Front 33

Keystone bones of the face; form the upper jaw and parts of the hard palate, orbits, and nasal cavity walls

Back 33

Maxilla

Front 34

Form the cheek and part of the orbit

Back 34

Zygomatic

Front 35

Construct the bridge of the nose

Back 35

Nasal

Front 36

Form part of the medial orbit wall

Back 36

Lacrimal

Front 37

Form posterior part of the hard palate and a small part of the nasal cavity and orbit walls

Back 37

Palatine

Front 38

Part of the nasal septum

Back 38

Vomer

Front 39

Form part of the lateral walls of the nasal cavity

Back 39

Inferior nasal concha

Front 40

Insertion points for the temporalis muscles

Back 40

Coronoid processes

Front 41

Articulate with the temporal bones in freely movable joints (temporomandibular joints) of the jaw

Back 41

Mandibular condyles

Front 42

Allow blood vessels and nerves to pass to the chin and lower lip

Back 42

Mental foramina

Front 43

Medial fusion point of the mandibular bones

Back 43

Mandibular symphysis

Front 44

Permit the inferior alveolar nerves to pass

Back 44

Mandibular foramina

Front 45

Sockets for the teeth

Back 45

Alveoli

Front 46

Help from the zygomatic arches

Back 46

Zygomatic processes

Front 47

form the anterior hard palate; meet in medial palatine suture

Back 47

Palatine processes

Front 48

Form part of lateral aspect of bridge of nose

Back 48

Frontal processes

Front 49

Permits blood vessels and nerves to pass through hard palate (fused palatine processes)

Back 49

Incisive fossa

Front 50

Houses the lacrimal sac, which helps to drain tears into the nasal cavity

Back 50

Lacrimal fossa

Front 51

Permit maxillary branch of cranial nerve V, the zygomatic nerve, and blood vessels to pass

Back 51

Inferior orbital fissures

Front 52

What are the SEVEN cranial bones?

hint: STEEP OF

Back 52

STEEP OF

Sphenoid
Temporal
Ethmoid
Ear Ossicles
Parietal
Occipital
Frontal

Front 53

Allows passage of infraorbital nerve to skin of face

Back 53

Infraorbital foramen

Front 54

What are the EIGHT facial bones?

Back 54

Mandible
Maxilla
Zygomatic
Nasal
Lacrimal
Palatine
Vomer
Inferior nasal concha