Head And Neck Anatomy-Ch3-Bones

Front 1

How many bones are in the skull?

Back 1

22 bones

Front 2

Paired or single?
-Ethomoid
-Frontal
-Occipital
-Parietal
-Sphenoid
-Temporal
-Palatine

Back 2

Ethmoid-single
Frontal-single
Occipital-single
Parietal-paired
Sphenoid-single
Temporal-paired
Palatine-paired

Front 3

Single or paired?
-Inferior nasal conchae
-Lacrimal bone
-Mandible
-Maxillae
-Vomer
-Zygomatic
-Nasal

Back 3

Inferior nasal concahe-paired
Lacrimal bones-paired
Mandible-single
Maxillae-paired
Vomer-single
zygomatic-paired
nasal-paired

Front 4

Name the suture
-articulation frontal and parrietal

Back 4

Coronal

Front 5

Name the suture
-art. frontal and nasal

Back 5

frontonasal

Front 6

Name the suture
-art. Maxillae

Back 6

Intermaxillary suture

Front 7

Name the suture
-art. occipital bone and parietal bones

Back 7

Lamboidal

Front 8

Name the suture
-art. temporal bones and parietal bones

Back 8

Squamosal suture

Front 9

Name the suture
-art. zygomatic bones and temporal bones

Back 9

Temporozygomatic suture

Front 10

Name the suture
-art maxillae and palatine bones

Back 10

Transverse palatine suture

Front 11

Which bones and which sutures are visible from a superior aspect?

Back 11

frontal, parietal (2), occipital

Coronal suture (frontal and parietal bones--location of soft spot in newborn), sagittal suture (extends from front to back of skull at midline between parietal bones), lamboidal (occipital and pariets--resembles an upside down V

Front 12

Which bones makes up the roof of the orbit?

Back 12

frontal

Front 13

Forms the greatest part of the medial wall of the orbit

Back 13

ethmoid bone

Front 14

bone at the anterior medial corner of the orbit and orbital surfaces of the maxilla (floor of the inferior wall)

Back 14

lacrimal

Front 15

anterior part of the lateral wall of the orbit

Back 15

zygomatic

Front 16

deepest part of the orbit composed of the lesser wing of the sphenoid (base) and the palatine bone

Back 16

orbital apex

Front 17

round opening in the orbital apex that lies between the two roots of the lesser wing of the sphenoid bone

Back 17

optic canal

Front 18

What passes through the optic canal?

Back 18

second cranial or optic nerve, ophthalmic artery also extends through the canal.

Front 19

slitlike fissure between greater and lesser wings of the sphenoid bone, lateral to the optic canal

connects orbit to cranial cavity.

Third cranial/oculomotor nerve, fourth cranial/trochlear nerve, sixth cranial/abducents nerve and opthalmic nerve (division from 5th cranial or trigeminal nerve) and vein travel through this fissure.

Back 19

superior orbital fissure

Front 20

connects the orbit with the infratemporal and pterygopalatine fossae. Also between the greater winf of the sphenoid bone and the maxilla

Back 20

inferior orbital fissure

Front 21

Roof of the orbit

Back 21

frontal bone

Front 22

medial wall of the orbit

Back 22

ethmoid and lacrimal (and maxilla at the apex)

Front 23

Lateral wall of the orbit

Back 23

zygomatic (and maxilla at apex)

Front 24

Base of the orbit

Back 24

sphenoid and palatine (maxilla at apex)

Front 25

The nasal cavity is mainly composed of..

Back 25

bone and cartilage

Front 26

The nasion marks the junction of what two bones?

Back 26

frontal and nasal

Front 27

The large triangular opening of the nasal cavity

Back 27

piriform aperature

-anterior openings to the nasal cavities are the nares
-posterior openings are the choanae (posterior nasal aperatures)

Front 28

the floor of the nasal cavity are formed by

Back 28

palatine processes of the maxillae anteriorly and the horizontal plates of the palatine bones posteriorly.

Lateral walls of the nasal cavity also the maxilla

Front 29

Name the 3 scroll like projections in the nasal cavity

Two are formed from _____ bone
The ______ is a separate bone

Back 29

Superior and middle nasal conchae--formed from ETHMOID

Inferior nasal concha is a separate facial bone

Front 30

Grooves deep to each nasal concha

Back 30

nasal meatus

-each has openings through which the paranasal sinuses or nasolacrimal duct communicate with the nasal cavity

Front 31

Which bones create the nasal septum?

Back 31

Perpendicular plate of the Ethmoid (anteriorly), Vomer (inferior and posterior), and nasal septal cartilage (inferiorly)

Front 32

How many muscle attachments does the Vomer have?

Back 32

NONE

Front 33

Two parallel ridges crossing both the frontal and parietal bones on the lateral surface of the skull

Back 33

Temporal lines

1) Superior=superior temporal line

2) Inferior=inferior temporal line-superior boundary of the temporal fossa where the temporalis muscle attaches

Front 34

What bones make up the zygomatic arch, what is the name of the suture between them and which muscle attaches here?

Back 34

-temporal process of the zygomatic
-zygomatic process of the temporal

termporozygomatic suture

-origin for the masseter

Front 35

Movable articulation between the temporal bone and the mandible

Back 35

temporomandibular joint (TMJ)

Front 36

What borders the hard palate and holds the maxillary teeth?

Back 36

alveolar process of the maxilla

Front 37

Which bones form the hard palate?

Back 37

two palatine processes of the maxillae anteriorly

-two horizontal plates of the palatine bones posteriorly

Front 38

vertical suture between the palatine process of the maxilla

Clinically, what covers this?

Back 38

medial palatine suture

clinically noted as medial palatine raphe

Front 39

Articulation between 2 palatine processes of the maxillae and two horizontal plates of the palatine bones (name the suture)

Back 39

transverse palatine suture

Front 40

The palatine bone is formed of two plates. Name the plates.

What bones do the palatine bones articulate with?

Which plate forms the posterior portion of the hard palate? Which forms the lateral wall of the nasal cavity?

Back 40

-Vertical and Horizontal plates

-articulate with the maxilla and the sphenoid

-Vertical makes up the lateral wall of the nasal cavity
-Horizontal plate makes up the posterior portion of the hard palate

Front 41

Aside from the lateral wall of the nasal cavity, what other feature does the vertical plate contribute to?

Back 41

Orbital apex

Front 42

Are palatine bones paired or single?

Back 42

Paired

Front 43

What suture is between the two horizontal plates of the palatine bones?

Back 43

median palatine suture

Front 44

opening located in the posterolateral region of each of the palatine bones (usually at the apex of the maxillary third molar)

What goes through this and why is it important?

Back 44

greater palatine foramen

carries the greater palatine nerve and blood vessels

*Landmark for the administration of the greater palatine block (anesthesia)

Front 45

smaller opening posterior to the greater palatine foramen.

Back 45

lesser palatine foramen

carries lesser palatine nerve and blood vessels to soft palate and tonsils

Front 46

The greater and lesser palatine foramina are openings to what? What does this carry?

Back 46

Pterygopalatine canal

carries the descending palatine nerves and blood vessels from the pterygopalatine fossa to the palate

Front 47

What does the maxilla articulate with?
(9 bones)

Back 47

Frontal
lacrimal
nasal
inferior nasal concha
vomer
sphenoid
ethmoid
palatine
zygomatic

(Fun Living Never Is Very Sparkly, Except Pirate Zebras)

Front 48

Maxilla-single of paired?

Back 48

paired

Front 49

Articulation of maxillary bones

Back 49

intermaxillary suture

Front 50

What are the largest bones of the face?

Back 50

maxilla

Front 51

What are the four processes of the maxilla?

Back 51

Frontal
zygomatic
Palatine
Alveolar

Front 52

Which part of the maxilla makes up the medial orbital rim?

What does this portion articulate with?

Back 52

frontal

frontal bone, lacrimal bone, nasal bone

Front 53

Which process of the maxilla completes the infraorbital rim?

Back 53

zygomatic

Front 54

which process of the maxilla is a major portion of the hard palate?

Back 54

palatine

Front 55

Which process of the maxilla has the roots of maxillary teeth?

Back 55

Alveolar

Front 56

What structures on the maxilla carry the infraorbital nerve?

Back 56

infraorbital sulcus (groove in the floor of the orbital surface)---->
infraorbital canal---->
infraorbital foramen (2cm below orbit in a vertical line with the supraorbital notch)

Front 57

What is the hole/opening that separates the maxilla from the sphenoid in the orbital area?

What goes through this hole?

Back 57

inferior orbital fissure

infraorbital and zygomatic nerves

infraorbital artery and opthamic veins

-infraorbital nerve continues on into the infraorbital sulcus--->infraorbital canal--->infraorbital foramen

Front 58

What hole in the orbit is between the wings of the sphenoid?

Back 58

superior orbital fissure

Front 59

Why is the infraorbital foramen important to know?

Back 59

landmark for anesthesia (infraorbital block)

Front 60

Depression posteriorsuperior to root of maxillary canine

just below infraorbital foramen

Back 60

Canine fossa

Front 61

Prominent ridge of bone above the maxillary canines

Back 61

canine eminence

Front 62

Which surface is the alveolar process thinner on (facial or lingual)?

Back 62

facial

Front 63

posterior part of the maxilla, posterior to the most distal molar of the maxillary arch

Back 63

maxillary tuberosity

Front 64

perforates the superolateral part of the maxillary tuberosity

What goes through here?

Back 64

posterior anterior alveolar foramen

(PSA nerve endings and vessels)

this and the max. tuberosity are landmarks for anesthesia (PSA block)

Front 65

Hole posterior to maxillary incisors

Covered by incisive papilla

What goes through here?

Back 65

incisive foramen

R and L nasopalatine nerves and blood vessels

(nasopalatine block-anesthesia)

Front 66

What does the mandible articulate with?

Is it single or paired?

Back 66

Freely and with the temporal bones

Single

Front 67

Bony prominence of the chin

Back 67

mental protuberance

Front 68

midline fusion point of the mandible

Back 68

mandibular symphysis

Front 69

Part of the mandible that is inferior to the alveolar process

Back 69

body of the mandible

Front 70

Hole inferior to the apices of the mandibular first and second premolars.

What is odd about this foramen?

Why do we need to be aware of this foramen clinically?

Back 70

mental foramen.

-allows entrance of mental nerve and blood vessels into the mandibular canal.

-Throughout development it changes direction. Starts anterior and then moves posterosuperior

-This foramen will appear radiolucent on a radiograph. We don't want to mistake it for an abscess

Front 71

Where is the bone of the alveolar process the least dense in the mandible, how might that affect anesthesia or route of infection?

Back 71

Around the mandibular incisors

Easier to infiltrate (give anesthesia & dental infection can spread more readily)

Front 72

The bone of the alveolar process on the mandible is thinner facially or lingually?

Back 72

lingually

Front 73

stout, flat plate of the mandible that extens superiorly and posteriorly from the body

Back 73

Ramus

site of attachment for muscles of mastication

Front 74

thin, sharp margin that makes up the anterior border of the ramus

Back 74

coronoid process

Front 75

concave curve that makes up the main part of the anterior border of the ramus

Back 75

coronoid notch
(greatest depresssion on the anterior border of the ramus--landmark for inferior alveolar block)

Front 76

crest where the body of the mandible joins the ramus

Back 76

external oblique line


-makes radiopaque line on a radiograph

Front 77

inferior part of the mandible where the ramus meets the body

Back 77

angle of the mandible

Front 78

Large posterior projection of the mandible

-Name the parts (3)

Back 78

condyloid process

-neck of the mandibular condyle
-mandibular condyle
-articulating surface of the condyle--makes up part of TMJ

Front 79

Depression between the coronoid process and the condyle

Back 79

mandibular notch

Front 80

small projections near the midline of the mandible from a medial view.

serve as sites for muscle attachment

Back 80

genial tubercles

Front 81

Rounded, roughened area on the lateral edge of each mandibular alveolar process just posterior to the most distal molar of the mandibular arch

Back 81

retromolar triangle

covered by retromolar pad

Front 82

projection on medial surface of the body of the mandible that extends posteriorly and superiorly just below the molars.

Is a point of attachment for muscles that form the floor of the mouth

Back 82

mylohyoid line

mylohyoid muscles attach here

radiopaque line inferior to the external oblique line on radiographs

Front 83

Depression above the mylohyoid line

Depression below the mylohyoid line

Back 83

above-sublingual fossa

below-submandibular fossa

Front 84

Which fossa contains the submandibular salivary gland? Which duct is an opening of this gland?

Back 84

Submandibular fossa

Wharton's duct

Front 85

Describe the path of the inferior alveolar nerve and blood vessels through the mandible

Back 85

from mandibular foramen, through the mandibular canal and exits through the mental foramen.

Front 86

bony spine overhanging the mandibular foramen

What is the function of this?

Back 86

lingula

serves as an attachment for the sphenomandibular ligament associate with TMJ

Front 87

small groove anterior and inferior to mandibular foramen

Back 87

mylohyoid groove

mylohyoid nerve and blood vessels travel through here

Front 88

Triangular depression inferior to the articular surface of the condyle on the anterior surface of the neck, seen from a medial view

Back 88

pterygoid fovea

attachment of the lateral pterygoid muscles

Front 89

Paranasal sinuses

-What are they
-How many are there?
-What is their function?

Back 89

paired, air filled cavities lined with mucous membranes. Continuous with nasal cavities

-4

-lighten the skull, act as sound resonators and provide mucus for the nasal cavity

Front 90

How do the paranasal sinuses communicate with the nasal cavity?

Back 90

by ostia-small openings in the lateral nasal wall

Front 91

Primary vs. secondary sinusitis

Back 91

primary-membranes inflamed from within

secondary-infection from another source

Front 92

What can primary maxillary sinus infection mimic?

Why is this possible?

Back 92

mimics discomfort of endodontic or periodontal infection of the maxillary posterior teeth.

Because the periodontal tissue of these teeth could be in direct contact with the mucosa of the max. sinuses

Front 93

Frontal sinuses

-paired?
-how does it communicate with the nasal cavity?

Back 93

paired in frontal bone, superior to nasal cavity

communicates w/ middle nasal meatus by the frontonasal duct

can be palpated during OE exam

Front 94

Sphenoidal sinuses

-paired?

Back 94

located in the body of the sphenoid

communicate and drain into nasal cavity through opening superior to each superior nasal concha

Front 95

Ethmoid sinuses

-Paired?

Back 95

variable number of small cavities in lateral mass of each ethmoid.

divided into anterior, middle and posterior.

Front 96

Maxillary sinuses

-Paired?
-location?

Back 96

Paired

-in body of maxillae posterior to max. canine and premolars.

-largest of paranasal sinuses

-can be palpated during EO exam

Front 97

What is the "entrance" and "exit" for the inferior alveolar nerve?

Back 97

Entrance=mental foramen

(goes through mandibular canal)

Exit=mandibular foramen

Front 98

Fan shaped fossa in the expanded "temple" region

Back 98

Temporal fossa

Front 99

cone shaped fossa, close to apex of the orbit

Back 99

pterygopalatine fossa

Front 100

Fossa that makes ups the inferior and anterior portion of temporal fossa

Back 100

infratemporal fossa

Front 101

Zygomatic

-paired or single?
-what does it articulate with?

Back 101

paired

-temporal, maxilla, sphenoid, frontal

Front 102

What are the three processes of the zygomatic?

Back 102

frontal

temporal

maxillary

Front 103

Which process of the zygomatic forms the lateral wall of the orbit?

Back 103

frontal process of the zygomatic

Front 104

small opening on the laterl surface of the frontal process of the zygomatic bone

Back 104

zygomaticofacial foramen

(zygomaticaofacial nerve and blood vessels)

Front 105

small opening on the medial deep surface of the temporal process of the zygomatic

Back 105

zygomaticotemporal foramen

zygomaticotemporal foramen

Front 106

Which part of the zygomatic forms a portion of the infraorbital rim and wall

Back 106

maxillary process of the zygomatic

Front 107

Lacrimal bones

-paired or single?
-What do they articulate with?

Back 107

paired

maxilla, frontal and ethmoid bones

Front 108

duct formed at the junction of the lacrimal and maxilla

Back 108

nasolacrimal duct

Willie says: If you ever wondered why your nose may run when you cry, it is because tears from the lacrimal gland drain through the nasolacrimal duct into the inferior nasal meatus

Front 109

Which are the smallest, most fragile facial bones?

Back 109

lacrimal

Front 110

suture between frontal and nasal bones

Back 110

frontonasal suture

Front 111

Nasal bones

-paired or single?
-What do they articulate with?

Back 111

-paired

-articulate with eachother in the midline, superior to the piriform aperature, also articulate with maxilla (laterally) and frontal (superiorly)

Front 112

Superior and middle nasal conchae are part of which bone? Therefore are they facial or cranial bones?

How about inferior nasal conchae?

Back 112

superior and middle are part of the ethmoid bone so are considered cranial

Inferior nasal conchae is its own separate bone--facial

Front 113

Inferior nasal concahe

-paired of single?
-articulations?

Back 113

paired

ethmoid, lacrimal, palatine, and maxillary

Front 114

What's the function of the inferior nasal conchae?

What is another name for the conchae?

Back 114

Increase amount of mucous membrane and olfactory nerve endings exposed to inhaled odors. Also, to warm air as it enters

Turbinates

Front 115

Do the inferior nasal conchae have muscle attachments?

What are they composed of?

Back 115

Nope

Thin, fragile spongy bone (curved like a scroll)

Front 116

Which bones form the bridge of the nose?

Back 116

nasal bones

Front 117

Vomer

-single or paired?
-articulations?
-Which border is free of articulations?

Back 117

single

articulates with ethmoid, nasal cartilage (nasal septum), palatine, maxillae, sphenoid

postero-inferior border free of any bony articulations

Front 118

Does the vomer have any muscle attachments?

Back 118

No

Front 119

How many facial bones are there?

How many single? paired?

Back 119

8 facial bones

2 single (mandible and vomer)
6 paired (nasal, lacrimal, inferior nasal conchae, zygomatic, palatine, maxilla)

Front 120

Horizontal perforations in the cribiform plate allow for?

Back 120

olfactory nerves

Front 121

Ethmoid bone

-single or paired?
-articulations?

Back 121

single (two unpaired plates)

articulates with: frontal, sphenoid, lacrimal, maxillary and vomer (inferior and posterior border)

Front 122

What are the two plates of the ethmoid bone?

Back 122

Perpendicular plate--vertical at the midline, forms part of the nasal septum (with vomer and nasal cartilage).
*Crista galli is the continuation of the perpendicular plate superiorly into the cranial cavity

2) Cribiform plate-horizontal part, surrounds crista galli

Front 123

What does the Crista galli do?

Back 123

serves as an attachment for layers covering the brain

Front 124

The cribiform plate is perforated by foramina--what is the purpose of these?

Back 124

allow for passage of olfactory nerves for sense of smell

Front 125

Which part of the ethmoid makes up the medial orbital wall?

Back 125

orbital plate

Front 126

Which two bones connect the cranial to the facial skeleton?

Back 126

sphenoid and ethmoid

Front 127

Sphenoid

-single or paired?
-articulations?

Back 127

single

-frontal, parietal, ethmoid, temporal, zygomatic, maxillary, palatine, vomer and occipital

Funky Pirates Eat Toasted Zebras, My Poor Velvety Oafs

Front 128

The body of the sphenoid articulates with...

What does this part of the sphenoid contain? (think spaces...)

Back 128

anteriorly-ethmoid bone

posteriorly-occipital bone

sphenoidal sinuses

Front 129

Name the three paired processes on the body of the sphenoid

Back 129

Greater wing
Lesser wing
Pterygoid process

Front 130

Which part of the sphenoid forms the base of the orbital apex?

Back 130

lesser wing

Front 131

Parietal

-single or paired?
-articulations?

Back 131

Paired

articulate with each other at the sagittal suture

-occipital, frontal, temporal, sphenoid

Front 132

Frontal bone

-single or paired?
-articulations?

Back 132

single

articulates with parietal, temporal, sphenoid, lacrimal, nasal, ethmoid, zygomatic and maxilla

Front 133

What spaces does the frontal bone house?

Back 133

frontal sinuses

Front 134

superior and inferior temporal lines traverse which two bones?

Back 134

frontal and parietal

Front 135

curved elevation over the superior part of the orbit

Back 135

supraorbital ridges of frontal bone

Front 136

depression in the medial part of the supraorbital ridge where the supraorbital artery and nerve travel from the orbit to the forehead

Back 136

supraorbital notch

Front 137

Frontal bone projection lateral to the orbit, articulates with the zygomatic

Back 137

zygomatic process of the frontal bone

Front 138

On which bone is the lacrimal fossa located?

Back 138

Frontal bone--just inside the lateral part of the supraorbital ridge.

Front 139

What's housed in the lacrimal fossa?

Back 139

Lacrimal gland

Front 140

Occipital bone

-single or paired?
-articulations?

Back 140

single

-articulates with parietal, temporal, sphenoid.

Front 141

Pterygoid canal

-What bone is this on/through
-Where does it lead to?
-What does it carry?

Back 141

Sphenoid bone (on the superior border of each posterior nasal aperature)

Leads to Pterygoid fossa

Carries pterygoid nerve and blood supply

Front 142

Which three bones have a zygomatic process?

Back 142

Frontal, Temporal, maxilla

Front 143

Foramen ovale

-Which bone is it located in?
-what does it carry?
-Where is it on the bone?

Back 143

-Sphenoid

-carries mandibular nerve of Trigeminal nerve (5th cranial)
-Larger anterior oval opening

Front 144

Foramen spinosum

-which bone is it located in?
-what does it carry?
-Where is it on the bone?

Back 144

-Sphenoid
-middle meningeal artery into cranial cavity
-just anterior to the spine of the sphenoid and posteriolateral to the foramen ovale

Front 145

Foramen lacerum

-Which bone
-What does it carry?
-Where is it on the bone?

Back 145

-at the junction of the sphenoid, occipital and temporal bones

-large, irregular shaped and filled with cartilage

-posteriomedial to foramen ovale of sphenoid bone

Front 146

Foramen rotundum

-which bone
-what does it carry?
-where on the bone?

Back 146

-Sphenoid
-posterior to superior orbital fissure on body of the sphenoid
-carries maxillary nerve of fifth cranial/Trigeminal

Front 147

Optic canals and foramina

-Which bone?
-What does it carry?
-Where on the bone?

Back 147

Sphenoid

carries optic nerve and ophthalmic artery

located in the posteromedial portion of the lesser wings of the sphenoid

Front 148

Superior orbital fissures
-which bone?
-What does it carry?
-Where on the bone?

Back 148

-Sphenoid
-III, IV, VI cranial nerves and opthalmic nerve and vein
-inbetween the greater and lesser wings

Front 149

Stylomastoid foramina

-what bone?
-what does it carry?
-Where on the bone?

Back 149

Temporal bone
-carries facial nerve (VII) and V cranial nerves
-inbetween the styloid process and the mastoid process

Front 150

Foramen magnum

-Which bone
-What does it carry
-where on the bone

Back 150

-occipital
-spinal cord, vertebral arteries and 11th cranial nerve
-huge hole in the middle

Front 151

Hypoglossal Canal

-which bone
-what does it carry
-where on the bone

Back 151

-Occipital
-hypoglossal nerve (12th cranial) and blood vessels
-

Front 152

Name the cranial bones and if they are paired or single (6)

Back 152

Occipital-single
Parietal-paired
Frontal-single
Temporal-paired
Sphenoid-single
Ethmoid-single

4 single and 2 paired

Front 153

Name the facial bones and if they are paired or single (8)

Back 153

Maxillae-paired
Mandible-single
Nasal-paired
Vomer-single
Zygomatic-paired
Lacrimal-paired
Inferior nasal conchae-paired
Palatine-paired

Front 154

Occipital condyles

-What bone are they found on?
-What do they articulate with?

Back 154

-occipital-on both sides of the foramen magnum

-articulate with the atlas of the first cervical vertebra

Front 155

Jugular foramen

-what bone is it on?
-where on the bone?
-what does it carry?

Back 155

-occipital and temporal bones
-medial to styloid process
-carries internal jugular vein and ninth, tenth and eleventh cranial nerves

Front 156

Hypoglossal canals

-what bone
-where on bone
-what does it carry

Back 156

Occipital bone

anterolateral to the foramen magnum through to hole on anterolateral part of occipital condyle ("canal")

carries hypoglossal nerve

Front 157

Carotid canal

-what bone
-where on bone
-what does it carry

Back 157

Temporal

medial to styloid process

Internal carotid artery and nerve plexus

Front 158

Which bone has a cribiform plate?

Back 158

Ethmoid

the foramina carry olfactory nerves

Front 159

Temporal bone

single or paired?
What does it articulate with?

Back 159

paired

zygomatic, parietal, occipital, sphenoid and mandible

Front 160

What are the three parts of a temporal bone?

Back 160

Squamous-fan shaped

Tympanic-associated with ear canal

Petrous-located inferiorly and helps form the cranial floor

Front 161

Lacrimal fossa

Which bone
What does it house?

Back 161

lateral part of the supraorbital ridge of the frontal bone

lacrimal gland

Front 162

Which part of the temporal is the zygomatic process on?

Back 162

squamous

Front 163

Which part of the temporal bone helps to form the braincase?

Back 163

Squamous

Front 164

Which part of the temporal bone is the external acoustic meatus on?

Back 164

Tympanic

Front 165

What features on the temporal bone make up the cranial portion of the TMJ? (3)

Which part of the temporal bone are these on?

Back 165

-Articular fossa
-Articular eminence
-Postglenoid process

Squamous part

Front 166

Mastoid process

-which bone is it on
-what part of the bone is it on?
-what is it's function?

Back 166

Petrous part of the temporal bone

-Site of attachment for SCM muscles
-air cells communicate with middle ear

Front 167

What separates the petrosal portion of the temporal from the tympanic portion?

what goes through here?

Back 167

Petrotympanic fissure

chorda tympani nerve

Front 168

What is the long pointy projection on the temporal bone called?

what is it's function?

Back 168

Styloid process?

Site of muscle attachment for tongue and pharyngeal musles

Front 169

Where is the internal acoustic meatus?

What goes through it?

Back 169

Petrous part of the temporal bone

7th and 8th cranial nerves

Front 170

Which bone resembles a bat or a butterfly?

Back 170

sphenoid

Front 171

What does the sphenoid articulate with?

Back 171

temporal, zygomatic, occipital, parietal, maxilla, vomer, palatine, frontal, ethmoid

Front 172

Which bone is the site for most of the muscles of mastication (hint-this bone also provides passage for branches of the trigeminal nerve that serves the oral cavity)

Back 172

sphenoid

Front 173

Pterygoid process

-which bone is it on?
-what is it's function?
-name its parts

Back 173

-sphenoid
-site of muscle attachment
-2 plates that extend inferiorly--lateral pterygoid and medial pterygoid, pterygoid fossa inbetween

Front 174

Where can you find the hamulus?

Back 174

It's the inferior termination of the medial pterygoid plate

Front 175

What is inbetween the pterygoid process and the maxillary tuberosity?

Back 175

pterygoid fossa

Front 176

infratemporal fossa

Back 176

lateral to the lateral pterygoid plate

Front 177

What does the body of the sphenoid contain?

Back 177

paranasal and sphenoid sinuses

Front 178

Where is the sella turcica located?

What does it hold?

Back 178

Body of the Sphenoid bone

houses the pituitary gland. (base of the skull)

Means "Turkish saddle"...so...the pituitary is a chunky little man that sits in the saddle.

Front 179

How many facial bones are there?

Back 179

8

2-single
6-paired

Front 180

What is another name for the zygomatic arch?

Back 180

Malar Bone