SKULL BONES

Question 1

Location of FRONTAL BONE

Answer 1

located at front of skull (“forehead”)

Question 2

Features of FRONTAL BONE

Answer 2

• Frontal sinuses
• Coronal Suture
• Glabella
• Supraorbital Foramen
• Supercillary Arches

Question 3

smooth surface between supraorbital ridges

Answer 3

glabella

Question 4

opening on superior aspect of orbit that transmits supraorbital nerve/artery/vein

Answer 4

Supraorbital foramen

Question 5

bony prominence on supraorbital margin

Answer 5

Superciliary Arches

Question 6

Location of PARIETAL BONES

Answer 6

Lateral walls of skull

Question 7

Features of PARIETAL BONES

Answer 7

• Sagittal Suture
• Lambdoid Suture
• Squamous Suture

Question 8

Location of TEMPORAL BONES

Answer 8

lateral walls of skull, inferior to parietal bones

Question 9

Features of TEMPORAL BONES

Answer 9

Internal Acoustic Meatus
External Acoustic Meatus
Petrous Region
Mastoid Process
Styloid Process
Zygomatic Process (+ Zygomatic Arch)
Stylomastoid Foramen

Question 10

Location of OCCIPITAL BONE

Answer 10

posterior region of skull

Question 11

Features of OCCIPITAL BONE

Answer 11

Foramen Magnum
External Occipital Protuberance
Occipital Condyles
Hypoglossal Canal
Jugular Foramen

Question 12

Location of SPHENOID BONE

Answer 12

butterfly-shaped, located internally

Question 13

Features of SPHENOID BONE

Answer 13

Sella Turcica
Sphenoid Sinus
Lesser Wings / Greater Wings
Pterygoid Processes (+ Medial and Lateral Pterygoid Plate)
Superior Orbital Fissures
Optic Canal
Foramen Spinosum
Foramen Rotundum
Foramen Lacerum

Question 14

Location of ETHMOID BONE

Answer 14

Inferior to frontal bone/posterior to nasal bones/anterior to sphenoid bone

Question 15

Features of ETHMOID BONE

Answer 15

Cribriform Foramina
Crista Galli
Ethmoid Air Cells (Sinuses)
Superior Nasal Conchae
Middle Nasal Conchae
Perpendicular Plate

Question 16

T/F: The INFERIOR NASAL CONCHAE is part of the ETHMOID BONE

Answer 16

F - separate bones that do not articulate with ethmoid bone (only Superior nasal conchae are part of ethmoid)

Question 17

4 Skull Sutures

Answer 17

Coronal, Sagittal, Squamous, Lambdoid

Question 18

Coronal Suture

Answer 18

connects frontal and parietal bones

Question 19

Sagittal Suture

Answer 19

connects parietal bones

Question 20

Squamous Suture

Answer 20

connects temporal and parietal bones

Question 21

Lambdoid Suture

Answer 21

connects occipital and parietal bones

Question 22

8 Major FACIAL BONES

Answer 22

Mandible
Maxillae
Lacrimal Bones
Nasal Bones
Vomer
Inferior Nasal Conchae
Palatine Bones
Zygomatic Bones

Question 23

Features of MANDIBLE

Answer 23

Mandibular Ramus = Condyloid and Coronoid Processes

Question 24

MANDIBLE

Answer 24

lower jaw

Question 25

Condyloid Process

Answer 25

- posterior projection from mandibular ramus - articulates with mandibular fossa of temporal bone  form TMJ

Question 26

Coronoid Process

Answer 26

- anterior process from mandibular ramus - attachment for temporalis muscle

Question 27

MAXILLAE

Answer 27

upper jaw and hard palate

Question 28

Features of MAXILLAE

Answer 28

Palatine Processes Maxillary Sinuses Inferior Orbital Fissure Infraorbital Foramen

Question 29

Palatine Processes

Answer 29

projection that form hard palate

Question 30

Inferior Orbital Fissure

Answer 30

- large opening along inferior floor of orbit - transmits branches of maxillary nerve/artery/vein

Question 31

Infraorbital Foramen

Answer 31

- opening below orbit - transmits infraorbital nerves/arteries/veins to face

Question 32

Lacrimal Bones

Answer 32

- small, located in medial part of orbit - form part of Nasolacrimal Duct (drains tears)

Question 33

Nasal Bones

Answer 33

form bony bridge of nose (where glasses sit)

Question 34

Nasal Bones

Answer 34

form bony bridge of nose (where glasses sit)

Question 35

Vomer

Answer 35

forms part of nasal septum

Question 36

Inferior Nasal Conchae

Answer 36

form part of lateral wall of nasal cavity

Question 37

Palatine Bones

Answer 37

form posterior portion of hard palate and posterolateral walls of nasal cavity

Question 38

Zygomatic Bones

Answer 38

form cheekbone of skull

Question 39

What is the Nasal Septum formed from?

Answer 39

Vomer, Perpendicular Plate of Ethmoid bone, Nasal cartilage

Question 40

hallow spaces within frontal bone

Answer 40

Frontal Sinuses

Question 41

transmits nerves for hearing/balance/facial expression

Answer 41

Internal Acoustic Meatus

Question 42

passageway for sound waves to reach tympanic membrane (eardrum)

Answer 42

External Acoustic Meatus

Question 43

densest portion skull, houses cochlea (hearing) and vestibular apparatus (balance)

Answer 43

Petrous Region

Question 44

opening between styloid and mastoid processes, transmits facial nerve

Answer 44

Stylomastoid Foramen

Question 45

opening between styloid and mastoid processes, transmits facial nerve

Answer 45

Stylomastoid Foramen

Question 46

large opening at base of skull

Answer 46

Foramen Magnum

Question 47

articulates with C1 vertebra (atlas) to make atlanto-occipital joint

Answer 47

Occipital Condyles

Question 48

located adjacent to occipital condyles, transmits hypoglossal nerve

Answer 48

Hypoglossal Canal

Question 49

opening between occipital and temporal bones

Answer 49

Jugular Foramen

Question 50

depression that houses pituitary gland

Answer 50

Sella Turcica

Question 51

transmits optic nerve and ophthalmic artery

Answer 51

Optic Canal

Question 52

transmits maxillary nerve

Answer 52

Foramen Rotundum

Question 53

holes that transmit olfactory nerves from nasal cavity into olfactory bulb

Answer 53

Cribriform Foramina