Skull, Face, Scalp Flashcards Preview

SP16 Anatomy Exam 2 > Skull, Face, Scalp > Flashcards

Flashcards in Skull, Face, Scalp Deck (93):
1

what are the four sutures of the skull

coronal
sagittal
squamosal
lambdoidal

2

what are the 2 intersections on the skull?

bregma
lambda

3

what are the bones of the face

nasal
maxilla
zygomatic
mandible
lacrimal
vomer, inferior nasal conchae
palatine bone

4

whats the general term for bones of the face?

viscerocranium

5

what are the 6 bones of the orbit

frontal
zygomatic
maxilla
lacrimal and ethmoid
sphenoid

6

what are the 5 features of the orbit?

supraortibal foramen/notch
optic canal (foramen)
superior ortbital fissure
inferior orbital fissure
lacriminal groove

7

what is the roof of the nasal cavity

nasal bones, frontal sinus, ethmoid, sphenoid sinus

8

what is the floor and lateral wall of the nasal cavity

maxillary bones

9

what is the floor of the nasal cavity

palatine horizontal plate

10

what is the medial wall of the nasal cavity

vomer and perpendicular plate of ethmoid bones

11

what is another feature of the nasal septum?

medial wall

12

what are the features of the nasal cavity

nasal conchae
superior nasal conchae
middle nasal conchae
inferior nasal conchae

13

what are the 2 features of the maxilla

infraorbital foramina
alveolar processes

14

what are the 2 features of the mandible

mental foramen and alveolar processes

15

what is the anterior cranial fossa hold?

frontal lobes

16

what does the middle cranial fossa hold?

temporal lobes

17

what does the posterior cranial fossa hold?

cerebellum and brainstem

18

what is the paranasal sinus lined with?

mucousal membrane

19

what is the paranasal sinus continous with?

nasal cavity

20

what does the paranasal sinus do for bones?

make bones lighter

21

what does the paranasal sinus add to voice?

resonance

22

what are the paranasal sinuses?

frontal sinuses
ethmoid air cells
sphenoid sinuses
maxillary sinuses

23

what is important about the foramina of the skull?

allow vessels and cranial nn to exit cranial vault

24

what are the layers of the SCALP?

skin
connective tissue (dense)
aponeurotic layer
loose connective tissue
pericranium

25

where would scalp lacerations happen and what could the outcome be?

Happen in the Connective tissue layer
outcome: bleed to death

26

why do infections spread easy in the loose areolar tissue?

spread easy
travel into cranial cavity (through emissary veins) to meniges
-fluid can move into eyelids and root of nose

27

what do the 3 auricularis mm do?

protract, elevate, and retract ears

28

what muscle moves the scalp back and forth?

occipitofrontalis m

29

what are the 3 things that make the occipitofrontalis m?

occipitalis m
galea aponeurotica
frontalis m

30

what is the action for the frontalis muscle?

elevates eyebrows, wrinkles skin of forehead, protracts scalp

31

what does the occipitalis muscle do?

retracts scalp, increasing effectiveness of frontal belly

32

what does the anterior auricularis muscle do?

protract ear

33

what does the superior auricularis muscle do?

elevate ear

34

what does the posterior auricularis muscle do?

retract ear

35

what nerve innervates muscles of facial expression?

facial nerve

36

what are the 3 muscles of the eye region?

frontalis m
corrugator supercilii m
orbicularis oculi m

37

action of frontalis m?

raises eyebrow (surprise)

38

action of corrugator supercilii m?

draws eyebrow in (frowning)

39

action of orbicularis oculi m?

closes eye (winking)

40

what are the 3 muscles of the nasal region

procerus m
nasalis m
levator labii superioris alaeque nasi m

41

action of procerus m?

wrinkles bridge of nose

42

action of nasalis m?

compresses and dilates nostri;

43

action of levator labii superioris alaeque nasi m?

dilates nostril

44

what are the 6 superficial muscles of the mouth region

orbicularis oris
levator labii superioris
zygomaticus major/minor
depressor anguli oris
risorius
mentalis

45

action of orbicularis oris?

closes mouth

46

action of levator labii superioris?

elevates upper lip

47

action of zygomaticus major/minor?

draws mouth up

48

action of depressor anguli oris?

depresses angle of mouth

49

action of risorius?

retracts the corner of the mouth

50

action of mentalis?

protrudes lower lip

51

what are the 3 deep muscles of the mouth region?

buccinator
levator anguli oris
depressor labii inferioris

52

action of buccinator?

compresses cheek and assists with mastication

53

action of levator anguli oris?

elevates angle of mouth

54

action of depressor labii inferioris?

depresses lower lip

55

what are the 4 muscles of mastication?

temporalis
massester
medial pterygoid
lateral pterygoid

56

action of temporalis?

elevates and retracts mandible

57

action of masster?

elevates and clenches mandible

58

action of med. pterygoid?

elevates, protrudes, and rotates mandible

59

action of lateral pterygoid?

protrudes and rotates mandible; opens mouth

60

what does the trigeminal nerve innervate?

sensory to the face and scalp

61

what does the cervical n innervate

sensory to the back of head, ears, and jaw

62

what does the facial nerve innervate?

motor to the mm of facial expression

63

what does the mandibular (CN V3) innervate?

motor to mm of mastication

64

what is CN V1 division?

ophthalmic

65

what are the 5 nerves of the sensory innervation of CN V1 division?

supraorbital n
supratrochlear n
infratrochlear n
external nasal n
lacrimal n

66

what is the CN V2 division?

maxillary division

67

what are the 3 nerves of sensory innervationof CN V2 division?

zygomaticotemporal n
zygomaticofacial n
infraorbital n

68

what is the CN V3 division?

mandibular

69

what are the 3 sensory innervations for CN V3 division

auriculotemporal n
buccal n
mental n

70

what does parotid duct transmit?

saliva from gland

71

where does it come out in the oral cavity?

parotid papilla

72

what is calculus formation associated with?

chronic parotiditis

73

what happens with salivary fistulas?

duct ligation

74

what is Frey's syndrome?

gustatory sweating

75

what nerve runs through parotid gland?

facial n

76

what can happen if you damage facial nerve?

paralysis of facial mm on affected ide

77

what nerve is in danger duing a parotidectomy?

facial n

78

what does facial nerve innervate

facial expression muscles

79

what does the facial nerve exit?

stylomastoid foramen

80

what does the facial nerve bifuricate into?

superior temprofacial branch
inferior cervicofacial branch

81

what are the branches of the facial nerve

temporal
zygomatic
buccal
marginal mandibular
cervical
posterior auricular

82

what is the most common cause of facial paralysis

bell's palsy

83

what nerve is associated with bell's palsy

facial nerve

84

what is the action of buccal fat pad?

provides protection for parotid duct and CN VII

85

what branch of the facial nerve is associated with buccinator m

buccal branch of facial nerve

86

buccal branch from facial nerve is motor or sensory?

motor

87

what is the branch of the trigeminal n for buccinator m

buccal branch

88

buccal branch from trigeminal n (CN V3) is sensory or motor?

sensory

89

what is the superficial temporal artery a branch of?

external carotid a

90

where does the superficial temporal vein drain to?

retromandibular vein

91

what does the superficial temporal artery & vein run with?

auriculotemporal nerve

92

what does the transverse facial artery and vein supply?

blood to upper cheek region (parotid gland, duct, and masseter m)

93

what are the branches of the superficial temporal vessels?

transverse facial artery & vein