Gross Anatomy Lecture 26

Front 1

line drawn from supraorbital ridge to mastoid process does what?

Back 1

separates the skull in 2 major parts:
-neurocranium
-splanchnocranium

Front 2

neurocranium - functions?

Back 2

-houses brain
-houses inner ear

Front 3

splanchnocranium - what is it? function?

Back 3

facial region
-houses the receptor organs for other special senses including smell taste and vision

Front 4

paired bones:

Back 4

-maxillae
-palatines
-nasals
-inferior conchae
-lacrimals
-zygomatics
-temporals
-parietals

Front 5

unpaired bones:

Back 5

-mandible
-vomer
-ethmoid
-spehnoid
-occipital
-frontal

Front 6

fontanelles - what are they?

Back 6

expanded areas of fibrous tissue at sutures in a newborn baby (softspots)

Front 7

what is the word for "significant changes in the dimensions" (of the cranium) and when does it occur?

Back 7

molding
-childbirth

Front 8

anterior fontanelle - lies in junction of what bones?

Back 8

frontal and parietal
-takes 1.5 - 2 years to close

Front 9

posterior fontanelle - lies at junction of what bones? what suture does it later form?

Back 9

occipital and parietal
-2-3 months to close
-lambdoid suture

Front 10

sutures - name them

Back 10

-coronal
-sagittal
-lambdoid
-basilar

Front 11

superciliary arch - location?

Back 11

frontal bone

Front 12

supraobrital margin - location?

Back 12

frontal bone

Front 13

supraorbital foramen - location?

Back 13

frontal bone

Front 14

temporal lines - location?

Back 14

frontal bone

Front 15

zygomatic process - location?

Back 15

frontal and maxillary

Front 16

nasal notch - location?

Back 16

maxilla

Front 17

infraorbital foramen - location?

Back 17

maxilla

Front 18

aveolar process - location?

Back 18

maxilla

Front 19

incisive fossa - location?

Back 19

maxillary

Front 20

palatine process - location?

Back 20

maxillary

Front 21

zygomaticofacial foramen - location?

Back 21

zygomatic

Front 22

frontal process - location?

Back 22

zygomatic

Front 23

temporal process - location?

Back 23

zygomatic

Front 24

maxillary border - location?

Back 24

zygomatic

Front 25

orbital border - location?

Back 25

zygomatic

Front 26

superior and inferior temporal line - location?

Back 26

parietal

Front 27

external auditory meatus - location?

Back 27

temporal

Front 28

styloid process - location?

Back 28

temporal

Front 29

glenoid (condylar) fossa - location?

Back 29

temporal

Front 30

postglenoid tuberacle - location?

Back 30

temporal

Front 31

articular tubercle - location?

Back 31

temporal

Front 32

mastoid process - location?

Back 32

temporal

Front 33

superior and inferior nuchael lines - location?

Back 33

occipital

Front 34

foramen magnum - location?

Back 34

occipital

Front 35

basioccipital - location?

Back 35

occipital

Front 36

occipital condyles - location?

Back 36

occipital

Front 37

scalp extends from _____ to ______, and laterally between the _______.

Back 37

-superior nuchael line
-supraorbital margins
-zygomatic arches

Front 38

5 layers of scalp

Back 38

1)skin
2)connective tissue
3)apeneurosis
4)loose subapeneurotic connective tissue
5)periosteum (pericardium)

Front 39

apeneurosis of scalp is continuous with which mucles?

Back 39

-frontalis m
-occipitalis m

Front 40

frontalis m - innervation?

Back 40

facial n

Front 41

occipitalis m - innervation

Back 41

facial n

Front 42

which layer of the scalp allows movement of skin?

Back 42

loose subapeneurotic connective tissue

Front 43

scalp anterior to ears - innervation?

Back 43

trigeminal n

Front 44

scalp posterior to ears - innervation?

Back 44

-spinal nerves C2 and C3
-greater occipital n
-lesser occipital n

Front 45

branches of external carotid a:

Back 45

-occipital a
-posterior auricular a
-superficial temporal a

Front 46

doppler ultrasound device can moniter blood flow of what?

Back 46

supraorbital a

Front 47

suppler ultrasound device is used to assess what?

Back 47

quantity of bloodflow in internal carotid a

Front 48

what forms the facial v?

Back 48

-supraorbital v
-supratrochlear v

Front 49

what allows facial infections to reach cavernous sinus?

Back 49

facial v communicating with opthalmic vv

Front 50

what forms the retromandibular v?su

Back 50

-superficial temporal v
-maxillary v

Front 51

path of meningitus

Back 51

infection --> emissary vv --> venous sinuses of the dura mater --> superior sagittal sinus and other intracranial sinuses

Front 52

all muscles of facial expression - innervation?

Back 52

facial n

Front 53

5 branches of facial n

Back 53

-temporal
-zygomatic
-buccal
-mandibular
-cervical

Front 54

muscles of facial expression are either _____ or act in association with _____

Back 54

sphinters
sphinters

Front 55

muscles of the mouth:

Back 55

-orbicularis oris
-depressor anguli oris
-zygomaticus major
-levator anguli oris

Front 56

which mouth muscle is the sphincter of the mouth?

Back 56

orbicularis oris

Front 57

muscle of the cheek

Back 57

buccinator

Front 58

buccinator m - function

Back 58

-feeding
-holds food items between upper and lower teeth

Front 59

muscles of the eyelid

Back 59

-levator palpabrae
-orbicularis oculi

Front 60

levator palpabrae - innervation

Back 60

CN3

Front 61

levator palpabrae - function

Back 61

lifts upper eyelid

Front 62

which eyelid muscle is not a muscle of facial expression, and why?

Back 62

levator palpabrae
-not innervated by facial n

Front 63

orbicularis oculi - function

Back 63

palpebral part
-blinking / light closing / wetting cornea
orbital part
-closes eye tightly / squinting

Front 64

muscles of the nose:

Back 64

-nasalis
-procerus

Front 65

what innervates skin of forehead?

Back 65

CN5I - opthalmic n

Front 66

opthalmic n - divisions?

Back 66

opthalmic n --> frontal n --> supratrochlear n AND supraorbital n

Front 67

what innervates the skin of infraorbital region and upper toothrow?

Back 67

CN5II - maxillary n

Front 68

maxillary n - branches

Back 68

-infraorbital n
-zygomaticofacial
-zygomaticotemporal

Front 69

mandibular n - branches

Back 69

-inferior aveolar n
-lingual n

Front 70

inferior aveolar n - exits jaw as what nerve through what foramen?

Back 70

-mental n
-mental foramen

Front 71

great auricular n - supplies what skin on the face?

Back 71

-angle of mandible
-near the auricle

Front 72

facial a - branches from?

Back 72

external carotid a

Front 73

facial a - decends deep to:

Back 73

zygomaticus major

Front 74

facial a - continuation of it is called:

Back 74

angular a

Front 75

superficial temporal a - terminal branch of:

Back 75

external carotid a

Front 76

maxillary a - terminal branch of:

Back 76

external carotid a

Front 77

superficial temporal a - deep to:

Back 77

parotid gland

Front 78

superficial temporal a - ascends posterior to _____ and superficial to ______.

Back 78

-neck of mandible
-zygomatic arch

Front 79

transverse facial a - branch of?

Back 79

superficial temporal a

Front 80

superficial temporal a - supplies?

Back 80

large region of scalp

Front 81

transverse temporal a anastomoses with what superficial to what muscle?

Back 81

-anastamoses with branches of facial a
-masseter m

Front 82

facial v - accompanies what a, and empties where?

Back 82

-accompanies facial a
-empties in internal jugular v

Front 83

superficial temporal v - joins _____ to form the _____.

Back 83

-maxillary v
-retromandibular v

Front 84

______ communicates with external jugular v before emptying into ______.

Back 84

-retromandibular v
-internal jugular v

Front 85

lingual v - empties into?

Back 85

-internal jugular vc