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T2 - GA II. Unit 1 > Temporal Region & infratemporal fossa > Flashcards

Temporal Region & infratemporal fossa Flashcards

1
Q

boundaries of the temporal fossa:

A

Posterio/superior- temporal line

Anterior: frontal & zygomatic

Lateraly: zygomatic arch

Inferior: infratemporal crest– aka great wing of the sphenoid

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2
Q

What is the infratemporal crest:

A

the ateral surface of the great wing of the sphenoid

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3
Q

What makes up the floor of the infratemporal fossa?

A

pterion:
* frontal
* temporal
* parietal
* sphenoid

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4
Q

What N’s runs through the temporal region?

A

auriculotemporal N

deep temporal N

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5
Q

What N does the auriculotemporal Nerve branch from ?

A

mandibular N

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6
Q

What is the artery that runs though the temporal fossa?

A

superficial temporal

major art. to the head

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7
Q

What does the deep temporal N branch from ?

A

mandibular division of the trigeminal

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8
Q

What is the superficial temporal a branch of ?

A

ECA

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9
Q

What is the deep temporal N a branch of ?

A

maxillary

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10
Q

What muscle has its innsertion on the coroniod of the mandible

A

temporalis

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11
Q

What is the greater wing of the sphenoid

A

the flat lateral part under the base of the skull

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12
Q

The otic gg contain cell bodies of ______

A

POST gg. PS

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13
Q

The mandibular N synapses at the _____ gg

A

optic

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14
Q

The lingual N carries what type of fibers?

A

GSA

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15
Q

What are the 4 cranial PS gg?

A

cillary
ptyergopalatine
otic
submandibular

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16
Q

Glidding motion of the TMJ anteriorlly is called ____

A

protrusion

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17
Q

Glidding motion of the TMJ posteriorly is ___

A

retrusion

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18
Q

The TMJ is a _____ type of joint

A

synovial

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19
Q

What two ligaments reinforce the TMJ medially

A

stylomandibular lig

sphenomandibular lig

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20
Q

attachment of the stylomandibular lig & fxn

A

A: styloid process
angle of the mandible

Fxn: reinforce TMJ medially

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21
Q

Attachment of the sphenomandibular lig & fxn

A

A: Spine of sphenoid
lingula

Fxn: reinforce the TMJ medially

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22
Q

What ligs reinforces the TMJ laterally

A

fibrous capsule

lateral ligament

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23
Q

Attachment and Fxn of the lateral lig. of the TMJ

A

A: temporal portion of the zygomatic arch
mandible

fxn: reinforce the TMJ laterally

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24
Q

M that act to elevate the TMJ

A

temporalis
masseter
Medial pterygoid

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25
Q

Movement of the TMJ during Elevation

A

glids posterior & rolls anterior

opposite depression

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26
Q

Movement of the TMJ during depression

A

glids anterior with posterior rolling

(opposite elevation

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27
Q

Movement of the TMJ during protrusion

A

anterior glidding

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28
Q

Movement of the TMJ duing retrusion

A

posterior glidding

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29
Q

Movement of the TMJ during lateral movements (grinding and chewing)

A

ex: moving jaw to left:

L. condylar process rotates & R. TMJ glides at the same time

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30
Q

M. used during TMJ depression

A

lateral pterygoid
suprahyoid M
Infrahyoid M

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31
Q

M used during the action of protrusion of the TMJ

A

Lateral pterygoid
Masseter
Medial pterygoid

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32
Q

M used during the action of Retrusion of the TMJ

A

temporalis

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33
Q

M used during lateral movements of the TMJ

A

temporalis of same side
pterygoid of opposite side
masseter

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34
Q

Terminal branches of the ECA

A

superficial temporal A

Maxillary A

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35
Q

What does the maxillary A branch from

A

ECA

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36
Q

What does the Superficial temporal art branch from

A

ECA

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37
Q

Define Hilton’s law

A

A Nerve that innervates a joint often tends to innervate the Muscles that move the joint and the skin that covers the muscle distally

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38
Q

Nerve that runs with the superficial temporal art

A

auriculotemporal N

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39
Q

The artery that runs with the auriculotemporal N

A

superficial temporal art

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40
Q

Name the 4 muscles of mastication

A

temporalis
masseter
lateral pterygoid
medial pterygoid

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41
Q

What anatomical structure does the Maxillary A arise from?

A

parotid gland

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42
Q

The maxillary art. leaves the infratemporal fossa through the ______

A

pterygopalatine fissure

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43
Q

name the 5 arteries that lie in the infratemporal fossa

A

(1) deep auricular
(2) anterior tympanic
(3) Middle meningeal
(4) Inferior alveolar

2nd part of maxillary:
Buccal Art

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44
Q

____ art joins with the inferior alveolar N into the mandibular canal

A

inferior alveolar art

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45
Q

_____ art enters the skull through the foramen spinosum

A

middle meningeal A

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46
Q

The middle meningeal A enters the skull though the ________

A

foramen spinosum

47
Q

_____ art branches to the muscles of mastication

A

maxillary A

48
Q

______ & _____ A supply the structures of the external ear

A

Deep auricular & anterior tympanic

49
Q

the deep auricular A supplies the structures of the _______

A

external ear

with the anterior tympanic

50
Q

the anterior tympanic A supplies the structures of the _____

A

external ear

with the anterior tympanic

51
Q

______ A supplies the cheek

52
Q

What is the venous counter part to the Maxillary A

A

pterygoid venous plexus

53
Q

What are the three directions that the pterygoid plexus can drain?

A

cavernous sinus

(post) maxillary V
(ant) deep facial v

54
Q

Cavernous sinus drains into the ?

A

superior opthalmic v

Inferior opthalmic v

55
Q

Facial V receives drainage from what three veins

A

Superior opthalmic

inferior opthalmic

Deep facial V

56
Q

The facial V drains into?

A

IJV

IJV –> subclavian

57
Q

Pterygoid plexus drains posteriorly into the ____V

A

Maxillary V

58
Q

maxillary V drains into the _____ V

A

retromandibular V

59
Q

The retromandibular V drains into____

A

EJV

EJV –> subclavian

60
Q

The mandibular N exits the skull through the _____

A

foramen ovale

it has sensory and Motor at this pt

61
Q

After the mandibular N exits the foramen ovale it descends btw which two M

A 
Tensor veli palatini (medially) 
Lateral pterygoid (Laterally)
62
Q

Name the two branches off the main trunk of the Mandibular N

A

Meningeal branch

Nerve to medial pterygoid

63
Q

Branches of the anterior division of the mandibular N

A

Masseteric N
deep temporal N
Nerve to lateral pterygoid

Buccal N (sensory)

64
Q

Branches from the posterior division of the mandibular N

A

Auriculotemporal N
Lingual N
Inferior alveolar N (gives the mylohyoid N )

65
Q

The mylohyoid N is a branch of the _____ N

A

inferior alveolar N

66
Q

What are the sensory N branches of the mandibular N

A

B.A.L.I

Buccal (part of the anterior division)
auriculotemporal N
Lingual N
Inferior alveolar N

67
Q

Chorda tempani is a branch of the ____N

68
Q

The chorda tempani joins with the _____N

A

lingual N (branch of the mandibular)

69
Q

What nerve branch contains “gustatry fibers”

A

Chorda tempani

70
Q

Nerve fiber type of the chorda tempani

A

SVA : taste (gustatory fibers)

Pre gg PS: provides secretamotor innervation

71
Q

The lingual N carries _____ fiber types

72
Q

cc: if there is a cut above the chorda tempani what type of nerve fibers are cut?

A

SVA - taste

Pre gg PS - secretomotor

73
Q

CC: if there is a cut below the jxn of the chorda tempani and lingual N what nerve fibers are lost?

A

GSA
SVA
secretomotor

74
Q

GSA fibers do what?

A

sensitive to pain, touch and temperature on the somatic surface of the body

75
Q

Nerve fiber types of the mandibular N

A

GSA (sensory )

SVE (motor)

76
Q

What are the two branches off the mandibular N

A

Meningeal Branch

N to the medial pterygoid

77
Q

Which division of the mandibular N is sensory

A

posterior division

78
Q

_______ gives post gg PS innervation to the parotid gland

A

auriculotemporal N

of the posterior division of the mandibular N

79
Q

______ N gives sensation to the lower lip and chin

A

Mental N

  • a branch of the lingual N of the posterior division of the mandibular N
80
Q

buccal N from the anterior division of the trigeminal is _______ innervation

81
Q

buccal N from the facial N is ______ innervation

82
Q

Buccal N from the _____N gives off motor fibers

83
Q

Buccal N from the ______N gives off sensory

A

mandibular N

84
Q

the chorda tempani exits the cranial cavity through the _____

A

pytertempani fissure

85
Q

_____ gg is located in the infratemporal fossa

A

otic gg

PS

86
Q

The parotid gland received secretory motor nerves from _______ N branch of the ______ CN

A

auriculotemporal N

  • POST gg PS fibers from the glossopharyngeal N
87
Q

Where do pre gg PS secretomotor N’s originate from?

A

inferior salivtory nucleus

88
Q

name the boundaries of the pterygopalatine fossa

A

post- pterygoid process of the sphenoid

ant- post aspect of the maxillary

roof- greater wing of the sphenoid

floor- pyramidal process of the palatine

89
Q

pterygopalatine communicates with the infratemporal fossa through the ____

A

infratemporal fissure

90
Q

pterygopalatine communicates with the nasal cavity through the ______

A

sphendopalatine foramen

91
Q

pterygopalatine communicates with the orbit through the _______

A

inferior orbital fissure

92
Q

pterygopalatine communicates with the middle cranial through the ______

A

foramen rotundum

93
Q

Contents of the pyterygopalatine fossa

A

pyterygopalatine gg

Pyterygopalatine part of the maxillary N

Terminal part of the maxillary A

94
Q

where is the terminal portion of the maxillary A located?

A

pyterygopalatine fossa

95
Q

name the 5 terminal branches of the maxillary artery that are located in the pterygopalatine fossa

A

posterior superior alveolar

infraorbital

sphenopalatine

artery of pterygoid canal

pharyngeal

descending palatine

96
Q

posterior superior alveolar is a branch of the ____

A

maxillary A

97
Q

infraorbital A is a branch of the ___ A

A

maxiallry A

98
Q

what are the 3 portions of the maxillary N located in the pterygopalatine fossa

A
  1. zygomatic nerve
  2. pterygopalatine nerve
  3. infraorbital N
99
Q

What is the termninal branch of the maxillary art

A

infraorbital N

100
Q

What are the two branches off the zygomatic nerve (f the maxillary N )

A

zygomaticofacial

zygomaticotemporal

101
Q

pterygopalatine gg is a _____ gg

102
Q

____gg is where the facial N branches to form the greater petrosal N

A

geniculate gg

103
Q

Facial N houses _______ fibers

104
Q

The facial N exits the skull through the _____

A

internal auditory meatus

105
Q

After the geniculate gg, the facial N branches to form the ______ N

A

chorde tempani

106
Q

The greater petrosal N joins with the _______ N to form the N of the pterygoid canal

A

deep petrosal (SP)

originates from the cervical gg

107
Q

The internal carotid Plexus gives off the ______ which joins with the greater petrosal N to form the N of the pterygoid canal

A

Deep Petrosal (SP)

Originates from the cervical gg

108
Q

Where does the deep petrosal N originate from?

A

the internal carotid SP plexus that comes from the CERVICAL GG

109
Q

The N. of the pterygoid synapse at the ______ gg

A

pterygopalatine

110
Q

The N. of the pterygoid canal synpase at the pterygopalatine gg to give off the _____N

A

pterygopalatine (Post gg PS) N

111
Q

Post gg PS innervation to the lacrinal, palatine, mucosal gland comes from the ______gg

A

pterygopalatine gg

112
Q

c.c. xerophalmia can be cause by ?

A

infection of the pterygopalatine gg through an infection of the mandibular notch

113
Q

c.c. an infection through the pterygopalatine gg can cause?

A

infection of the pterygopalatine gg

  • dry eyes: xeophalmia
  • dry nose: the palatine glands cant secrete mucous

T2 - GA II. Unit 1 (9 decks)

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