Bones of the Head and Face

Question 1

The vault forms which aspects of the skull?

Answer 1

Superior, lateral, posterior aspects of the skull and forehead

Question 2

The base forms which aspect of the skull?

Answer 2

Inferior aspect of the skull

Question 3

What are the names of the cranial bones?

Answer 3

Frontal, Occipital, Parietal, Sphenoid, Temporal, Ethmoid

Question 4

What does it mean when cranial bones are paired?

Answer 4

There is one on each side of the skull

Question 5

What is the function of the curvature of cranial bones?

Answer 5

Allows them to be self-bracing, and allows them to be quite strong while being quite thin

Question 6

What is the function of the frontal bone?

Answer 6

Forms the roof of the orbits, contributes to the anterior cranial fossa

Question 7

What does the frontal bone articulate with?

Answer 7

Paired parietal bones (posteriorly)

Question 8

What is the function of the parietal bones?

Answer 8

Form the superior and lateral aspects of the skull, therefore form the bulk of the cranial vault

Question 9

What is the function of the occipital bone?

Answer 9

Helps form posterior aspect of the skull, forms walls of the posterior cranial fossa

Question 10

What does the occipital bone attach to?

Answer 10

Parietal bones, temporal bones, sphenoid bone

Question 11

What is the name of the large hole at the base of the occipital bone?

Answer 11

Foramen Magnus (large hole)

Question 12

Where are the occipital condyles?

Answer 12

On either side of the foramen magnum

Question 13

What is the function of the occipital condyles?

Answer 13

Site of articulation with the first cervical vertebra (atlas)

Question 14

What is the external occipital protuberance?

Answer 14

A bony projection at the back of the skull, more prominent in males

Question 15

What is the function of the temporal bones?

Answer 15

Form the inferior and lateral aspects of the skull and parts of the cranial floor

Question 16

What are the 3 parts of the temporal bones?

Answer 16

Squamous part, petrous part, tympanic part

Question 17

What are some important areas on the petrous part of the temporal bones?

Answer 17

Mastoid process, styloid process

Question 18

What is an important area of the squamous part of the temporal bones?

Answer 18

Zygomatic process

Question 19

What is the mastoid process?

Answer 19

An attachment site for some neck muscles

Question 20

What is the styloid process?

Answer 20

An attachment site for muscles of the tongue and some neck muscles

Question 21

What is the function of the squamous part of the temporal bones?

Answer 21

forms zygomatic process to the cheekbone, and the mandibular fossa receives the condyle of the mandible

Question 22

What is the function of the tympanic part of the temporal bones?

Answer 22

Surrounds external acoustic meatus

Question 23

What is the function of the petrous part of the temporal bone?

Answer 23

Contributes to the cranial base, houses middle and inner ear cavities

Question 24

What are the foramina associated with the temporal bone?

Answer 24

Jugular foramen, carotid canal, internal acoustic meatus

Question 25

The sphenoid bone articulates with:

Answer 25

All other cranial bones

Question 26

The sphenoid bone forms the:

Answer 26

Base of the middle cranial fossa, contributes to the base of the anterior cranial fossa

Question 27

What are the projections of the sphenoid bone?

Answer 27

Greater wings, lesser wings, pterygoid process

Question 28

What is the optic foramina?

Answer 28

A passageway for optic nerves

Question 29

What is the superior orbital fissure?

Answer 29

Located between the greater and lesser wings of the sphenoid bone, a passageway for cranial nerves for eye movement

Question 30

What is the shape of the ethmoid bone?

Answer 30

It approximates a cube

Question 31

Where is the ethmoid bone?

Answer 31

Deep between the orbits and nasal cavities

Question 32

what is the function of the cribriform plate?

Answer 32

Forms roof of nasal cavity and the floor of the anterior cranial fossa

Question 33

What is a feature of the cribriform plate?

Answer 33

It has olfactory foramina

Question 34

What are olfactory foramina?

Answer 34

Tiny holes that transmit olfactory nerves

Question 35

What is the function of the perpendicular plate?

Answer 35

Projects inferiorly to contribute to the nasal septum

Question 36

What is the function of the crista galli?

Answer 36

Projects superiorly to attach to the dura mater of the brain

Question 37

Lateral masses of the ethmoid bone contain:

Answer 37

Ethmoid sinuses

Question 38

Medially, the ethmoid bone has:

Answer 38

Superior and middle nasal conchae

Question 39

Laterally, the ethmoid bone has:

Answer 39

Orbital plates which contribute to the medial wall of the orbits

Question 40

The coronal suture unites the:

Answer 40

Frontal bone and 2 parietal bones

Question 41

The squamous suture unites the:

Answer 41

Parietal bone and temporal bone

Question 42

The lambdoid suture unites the:

Answer 42

Occipital bone and 2 parietal bones

Question 43

The sagittal suture unites the:

Answer 43

2 parietal bones

Question 44

What are sutural bones?

Answer 44

Tiny irregular bones that occur within a cranial suture. They are additional ossification centers that appeared rapidly during fetal development

Question 45

What are the PAIRED facial bones?

Answer 45

Maxillae, zygomatic, nasal, lacrimal, palatine, inferior conchae

Question 46

What are the UNPAIRED facial bones?

Answer 46

Mandible and vomer

Question 47

What is the mandible?

Answer 47

Lower jawbone, strongest and largest bone of the face

Question 48

What is the body of the mandible?

Answer 48

horizontal part of the bone, contains the chin, left and right rami join body at the mandibular angle

Question 49

The majority of the hard palate is formed by the:

Answer 49

Maxillary bones

Question 50

The anterior 2/3 of the hard palate is formed by the:

Answer 50

Palatine processes projecting posteriorly

Question 51

The zygomatic bones articulate with:

Answer 51

The zygomatic process of the maxilla, frontal, and temporal bones

Question 52

The zygomatic bones contribute to the:

Answer 52

Inferolateral margins of the orbits

Question 53

What are nasal bones?

Answer 53

2 small rectangular bones that fuse medially to form the bridge of the nose

Question 54

The nasal bones articulate superiorly with the:

Answer 54

Frontal bone

Question 55

The nasal bones articulate laterally with the:

Answer 55

Maxillary bones

Question 56

What are lacrimal bones?

Answer 56

2 fingernail shaped bones in the anterior medial portion of the orbit

Question 57

The lacrimal bones articulate with the:

Answer 57

Frontal bone, ethmoid bone, maxillae

Question 58

What is a lacrimal fossa?

Answer 58

A small depression that holds a lacrimal sac

Question 59

What bones contribute to the orbits?

Answer 59

Zygomatic, frontal, maxilla, ethmoid, lacrimal, sphenoid, palatine (orbital process)

Question 60

What are the palatine bones?

Answer 60

2 L-shaped bones that form the hard palate, nasal cavity, and orbit

Question 61

The horizontal plate of the palatine bone forms:

Answer 61

Part of the hard palate (posterior 1/3)

Question 62

The vertical plate of the palatine bone forms:

Answer 62

The nasal cavity and orbit

Question 63

What is the vomer?

Answer 63

A single thin bone that forms the nasal septum

Question 64

What are the inferior nasal conchae?

Answer 64

Thin, curved bones that project medially

Question 65

FITB: The inferior nasal conchae are the ___ of 3 pairs of conchae

Answer 65

Largest

Question 66

Which bones contribute to the paranasal sinus?

Answer 66

Frontal, maxillary, sphenoid, ethmoid

Question 67

What is the function of the paranasal sinuses?

Answer 67

Lighten the skull, enhance resonance of the voice, warm and humidify incoming air

Question 68

What allows the paranasal sinuses to warm and humidify incoming air?

Answer 68

Because they are connected to the nasal cavity