Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

MD4001 Anatomy > Face, scalp and muscles of mastication > Flashcards

Face, scalp and muscles of mastication Flashcards

1
Q

what are the boundaries of the scalp

A

superior nuchal line on the occipital bone
supraorbital margins of frontal bone
zygomatic arches laterally

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what are the layers of the scalp

A 
skin 
dense connective tissue
aponeurosis 
loose connective tissue 
pericranium
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what does the dense connective tissue on the scalp contain

A

richly vascularised

cutaneous nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what does the epicranial aponeurosis contain

A

tendon and muscle of the occipitofrontalis

prevents superficial wounds from gaping open

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what does the loose connective tissue contain

A

loose areolar tissue
allows free movement of outer layers of overlying calvaria

contains spaces which allow accumulation of fluid or infection spread such as eyelid and nose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what is the innervation of the scalp

A

Cn V (V1, 2, 3) and cervical nerves from C2 and 3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what nerves supply the anterior part of the scalp

A

branches of the trigeminal nerve

supraorbital
supratrochlear
zygomaticotemporal
auriculotemporal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what nerves supply the posterior part of the scalp

A

C2 and 3

greater occipital
lesser occipital
third occipital
greater auricular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is the blood supply to the anterior scalp

A

internal carotid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what is the blood supply to the posterior and lateral scalp

A

external carotid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

where does the occipital vein drain to

A

internal jugular

all others are external jugular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the branches of the internal carotid artery that supply the scalp

A

supra orbital

supratrochlear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what are the branches of the external carotid that supply the scalp

A

superficial temporal
posterior auricular
occipital

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what is the posterior lymph drainage of the scalp

A

mastoid and occipital nodes to deep cervical nodes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what is the anteriorr lymph drainage of the scalp and face

A

pre auricular and parotid nodes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what is the innervation of the muscles of mastication

A

mandibular division of the trigeminal nerve V3

temporalis
masseter
medial and lateral pterygoid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

where does temporalis originate

A

temporal fossa and fascia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

where does temporalis insert (closes the mouth)

A

coronoid process of mandible and anterior margin of ramus of mandible near last molar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what is the innervation of temporalis

A

deep temporal nerves from anterior trunk of CN V3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what is the origin of masseter (elevator)

A

zygomatic arch (deep part) and maxillary process of zygomatic bone (superficial)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what is the insertion of masseter

A

lateral surface of ramus of mandible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

what is the innervation of masseter

A

masseteric nerve from anterior trunk of V3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

what is the origin of medial pterygoid

A

medial surface of lateral plate of pterygoid process and pyramidal process of palatine bone (deep head)

tuberosity of pyramidal process of maxilla (sup head)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

what is the insertion of medial pterygoid

A

medial surface of mandible near the angle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

what is the function of medial pterygoid

A

elevation and side to side movements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

what is the innervation of medial pterygoid

A

nerve to medial pterygoid of V3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

what is the origin of lateral pterygoid

A

upper head- roof of infratemporal fossa

lower head - lateral surface of lateral plate of pterygoid process

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

what is the insertion of lateral pterygoid

A

capsule of TMJ and pterygoid fovea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

what are the functions of lateral pterygoid

A

protrusion, side to side movements and depression

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

what is the innervation of lateral pterygoid

A

nerve to lateral pterygoid from the anterior trunk or buccal nerve of V3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

what muscles retract the mandible

A

posterior fibres of temporalis

deep part of masseter

32
Q

what muscles cause side to side movements

A

lateral and medial pterygoid

33
Q

what muscles are supplied by the facial nerve (7)

A 
buccinator 
orbicularis oculi 
orbicularis oris 
occipitofrontalis 
platysma
34
Q

what is the origin of buccinator

A

posterior part of maxilla and mandible and pterygomandibular raphe

35
Q

what is the function of buccinator

A

press the cheeks against the teeth and it compresses distended cheeks. It also assists in smiling

36
Q

what is the innervation of buccinator

A

buccal branches of Cn 7

37
Q

describe the position of the parotid duct

A

lies of top of masseter

pierces buccinator and buccal fat pad en route to the oral cavity where it enters near the 2nd molar

38
Q

what is the insertion and origin of obicularis oris

A

buccinator and surrounding muscles also medial mandible and maxilla

inserts into mucous membrane of lips

39
Q

what is the function of obicularis oris

A

close and protude the lips, keeps food in mouth

40
Q

name the smaller muscles of facial expression and mouth movements

A 
mentalis 
risorius
depressors
levators
zygomaticus maj and min
41
Q

what is the origin and insertion of platysma

A

subcutaneous tissue of infra and supraclavicular regions

base of mandible, skin of cheek and lower lip, angle of mouth and lower lip

42
Q

what is the function of platysma

A

depress the mandible and tense the skin of the inferior face and neck

43
Q

what is the innervation of platysma

A

7 (cervicofacial branch)

44
Q

what is the origin and insertion of occipitofrontalis

A
  • frontal belly originates from the epicranial aponeurosis and inserts into skin and subcutaneous tissue of eyebrows.
  • occipital belly originates from the lateral 2/3 of superior nuchal line and inserts into the epicranial aponeurosis
45
Q

what is the innervation of occipitofrontalis

A

temporal branch posterior auricular nerve of CN7

46
Q

what is the function of occipitofrontalis

A

move the scalp, wrinkle forehead, and raise the eyebrows

47
Q

what is the origin and insertion of obicularis oculi

A
  • (palpebral) originates from the medial palpebral ligament and inserts into the lateral palpebral raphe at the ligament.
  • (orbital) originates from the nasal part of the frontal bone, frontal process of maxilla, and medial palpebral ligament and inserts into skin around margin of orbit
48
Q

what are the functions of orbicularis oculi

A

close the eyelids

49
Q

what is the innervation of orbicularis oculi

A

temporal and zygomatic branches of CN 7

50
Q

describe the course of the facial nerve

A

leaves via interal acoustic meatus
exits through stylomastoid foramen

gives of post auricular and digastric branch before entering the parotid gland

51
Q

what two branches arise from the facial nerve inside the parotid gland

A

upper/ temporofacial ( temporal and zygomatic

lower/ cervicofacial (cervical, buccal, marginal mandibular)

52
Q

what mnemonic can be used to remember the branches of the facial nerve within the parotid gland

A

two zebras befriended my cat

temporal 
zygomatic
buccal 
mandibular 
cervical
53
Q

what are the layers of the eyelid

A 
skin 
connective tissue
muscle
orbital septum 
tarsus
conjunctiva
54
Q

what is the opening of the eyelids called

A

palpebral fissure

55
Q

review details of the lacrimal apparatus

A

drake 882-3

56
Q

orbital septum

A

anterior border of orbit continuos with periosteum

57
Q

tarsus

A

eyelid support

58
Q

what is the blood supply of the eyelids

A 
ext carotid (facial, transverse facial, sup temporal) 
int carotid (supratrochlear, supraorbital, lacrimal)
59
Q

what is the venous drainage of the eyelids

A

parotid nodes

60
Q

what is the innervation of the eyelids

61
Q

what is the blood supply of the ears

A

ext carotid and ext jugular

62
Q

what is the lymphatic drainage of the ears

A

parotid, mastoid and deep cervical

63
Q

what is the innervation of the ears

A

Cn 7 and 10

surrounding muscles are 7

64
Q

what muscles move the ears

A

anterior, superior and posterior auricular

65
Q

what are the muscles of facial expression related to the nose

A

nasalis, depressor septi nasi, levator labii superioris

66
Q

what is the blood supply of the face

A

mostly ext carotid but also int carotid

67
Q

what are the branches of the ext carotid which supply the face

A

facial, buccal, mental, infraorbital, transverse facial

68
Q

where can the facial artery be palpated

A

inferior border of mandible or anterior to the auricle

69
Q

what branches of internal carotid supply the face

A

zygomaticofacial

zygomaticotemporal

70
Q

where does the facial vein drain

A

internal jugular

drains most of the face

71
Q

what vein drains some of the upper face

A

transverse facial vein

72
Q

what is the danger zone

A

triangle from between eyes down to lips

infection from cavernous sinus to cranium due to many venous connections and valveless veins

73
Q

what do the submental lymph nodes drain

A

inferior chin from medial lower lip and chin

74
Q

what do the pre auricular and parotid nodes drain

A

near ear, eyelids, lateral cheek and external nose

75
Q

what do the submandibular nodes drain

A

follows facial artery from medial orbit to external nose, medial cheek, upper lip, lateral lower lip

76
Q

what modality is the mandibular nerve

A

motor and sensory

77
Q

what modality is the opthalmic and maxillary nerve

MD4001 Anatomy (45 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions