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
2
Q
What is the infratemporal crest:
A
the ateral surface of the great wing of the sphenoid
3
Q
What makes up the floor of the infratemporal fossa?
A
pterion:
* frontal
* temporal
* parietal
* sphenoid
4
Q
What N’s runs through the temporal region?
A
auriculotemporal N
deep temporal N
5
Q
What N does the auriculotemporal Nerve branch from ?
A
mandibular N
6
Q
What is the artery that runs though the temporal fossa?
A
superficial temporal
major art. to the head
7
Q
What does the deep temporal N branch from ?
A
mandibular division of the trigeminal
8
Q
What is the superficial temporal a branch of ?
A
ECA
9
Q
What is the deep temporal N a branch of ?
A
maxillary
10
Q
What muscle has its innsertion on the coroniod of the mandible
A
temporalis
11
Q
What is the greater wing of the sphenoid
A
the flat lateral part under the base of the skull
12
Q
The otic gg contain cell bodies of ______
A
POST gg. PS
13
Q
The mandibular N synapses at the _____ gg
A
optic
14
Q
The lingual N carries what type of fibers?
A
GSA
15
Q
What are the 4 cranial PS gg?
A
cillary
ptyergopalatine
otic
submandibular
16
Q
Glidding motion of the TMJ anteriorlly is called ____
A
protrusion
17
Q
Glidding motion of the TMJ posteriorly is ___
A
retrusion
18
Q
The TMJ is a _____ type of joint
A
synovial
19
Q
What two ligaments reinforce the TMJ medially
A
stylomandibular lig
sphenomandibular lig
20
Q
attachment of the stylomandibular lig & fxn
A
A: styloid process
angle of the mandible
Fxn: reinforce TMJ medially
21
Q
Attachment of the sphenomandibular lig & fxn
A
A: Spine of sphenoid
lingula
Fxn: reinforce the TMJ medially
22
Q
What ligs reinforces the TMJ laterally
A
fibrous capsule
lateral ligament
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
24
Q
M that act to elevate the TMJ
A
temporalis
masseter
Medial pterygoid
25
Movement of the TMJ during Elevation
glids posterior & rolls anterior
| opposite depression
26
Movement of the TMJ during depression
glids anterior with posterior rolling
(opposite elevation
27
Movement of the TMJ during protrusion
anterior glidding
28
Movement of the TMJ duing retrusion
posterior glidding
29
Movement of the TMJ during lateral movements (grinding and chewing)
ex: moving jaw to left:
| L. condylar process rotates & R. TMJ glides at the same time
30
M. used during TMJ depression
lateral pterygoid
suprahyoid M
Infrahyoid M
31
M used during the action of protrusion of the TMJ
Lateral pterygoid
Masseter
Medial pterygoid
32
M used during the action of Retrusion of the TMJ
temporalis
33
M used during lateral movements of the TMJ
temporalis of same side
pterygoid of opposite side
masseter
34
Terminal branches of the ECA
superficial temporal A
| Maxillary A
35
What does the maxillary A branch from
ECA
36
What does the Superficial temporal art branch from
ECA
37
Define Hilton's law
A Nerve that innervates a joint often tends to innervate the Muscles that move the joint and the skin that covers the muscle distally
38
Nerve that runs with the superficial temporal art
auriculotemporal N
39
The artery that runs with the auriculotemporal N
superficial temporal art
40
Name the 4 muscles of mastication
temporalis
masseter
lateral pterygoid
medial pterygoid
41
What anatomical structure does the Maxillary A arise from?
parotid gland
42
The maxillary art. leaves the infratemporal fossa through the ______
pterygopalatine fissure
43
name the 5 arteries that lie in the infratemporal fossa
(1) deep auricular
(2) anterior tympanic
(3) Middle meningeal
(4) Inferior alveolar
2nd part of maxillary:
Buccal Art
44
____ art joins with the inferior alveolar N into the mandibular canal
inferior alveolar art
45
_____ art enters the skull through the foramen spinosum
middle meningeal A
46
The middle meningeal A enters the skull though the ________
foramen spinosum
47
_____ art branches to the muscles of mastication
maxillary A
48
______ & _____ A supply the structures of the external ear
Deep auricular & anterior tympanic
49
the deep auricular A supplies the structures of the _______
external ear
| with the anterior tympanic
50
the anterior tympanic A supplies the structures of the _____
external ear
| with the anterior tympanic
51
______ A supplies the cheek
Buccal A
52
What is the venous counter part to the Maxillary A
pterygoid venous plexus
53
What are the three directions that the pterygoid plexus can drain?
cavernous sinus
(post) maxillary V
(ant) deep facial v
54
Cavernous sinus drains into the ?
superior opthalmic v
Inferior opthalmic v
55
Facial V receives drainage from what three veins
Superior opthalmic
inferior opthalmic
Deep facial V
56
The facial V drains into?
IJV
| IJV --> subclavian
57
Pterygoid plexus drains posteriorly into the ____V
Maxillary V
58
maxillary V drains into the _____ V
retromandibular V
59
The retromandibular V drains into____
EJV
| EJV --> subclavian
60
The mandibular N exits the skull through the _____
foramen ovale
| it has sensory and Motor at this pt
61
After the mandibular N exits the foramen ovale it descends btw which two M
```
Tensor veli palatini (medially)
Lateral pterygoid (Laterally)
```
62
Name the two branches off the main trunk of the Mandibular N
Meningeal branch
| Nerve to medial pterygoid
63
Branches of the anterior division of the mandibular N
Masseteric N
deep temporal N
Nerve to lateral pterygoid
Buccal N (sensory)
64
Branches from the posterior division of the mandibular N
Auriculotemporal N
Lingual N
Inferior alveolar N (gives the mylohyoid N )
65
The mylohyoid N is a branch of the _____ N
inferior alveolar N
66
What are the sensory N branches of the mandibular N
B.A.L.I
Buccal (part of the anterior division)
auriculotemporal N
Lingual N
Inferior alveolar N
67
Chorda tempani is a branch of the ____N
Facial N
68
The chorda tempani joins with the _____N
lingual N (branch of the mandibular)
69
What nerve branch contains "gustatry fibers"
Chorda tempani
70
Nerve fiber type of the chorda tempani
SVA : taste (gustatory fibers)
Pre gg PS: provides secretamotor innervation
71
The lingual N carries _____ fiber types
GSA
72
cc: if there is a cut above the chorda tempani what type of nerve fibers are cut?
SVA - taste
| Pre gg PS - secretomotor
73
CC: if there is a cut below the jxn of the chorda tempani and lingual N what nerve fibers are lost?
GSA
SVA
secretomotor
74
GSA fibers do what?
sensitive to pain, touch and temperature on the somatic surface of the body
75
Nerve fiber types of the mandibular N
GSA (sensory )
| SVE (motor)
76
What are the two branches off the mandibular N
Meningeal Branch
| N to the medial pterygoid
77
Which division of the mandibular N is sensory
posterior division
78
_______ gives post gg PS innervation to the parotid gland
auriculotemporal N
| of the posterior division of the mandibular N
79
______ N gives sensation to the lower lip and chin
Mental N
- a branch of the lingual N of the posterior division of the mandibular N
80
buccal N from the anterior division of the trigeminal is _______ innervation
sensory
81
buccal N from the facial N is ______ innervation
Motor
82
Buccal N from the _____N gives off motor fibers
facial N
83
Buccal N from the ______N gives off sensory
mandibular N
84
the chorda tempani exits the cranial cavity through the _____
pytertempani fissure
85
_____ gg is located in the infratemporal fossa
otic gg
| PS
86
The parotid gland received secretory motor nerves from _______ N branch of the ______ CN
auriculotemporal N
- POST gg PS fibers from the glossopharyngeal N
87
Where do pre gg PS secretomotor N's originate from?
inferior salivtory nucleus
88
name the boundaries of the pterygopalatine fossa
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
pterygopalatine communicates with the infratemporal fossa through the ____
infratemporal fissure
90
pterygopalatine communicates with the nasal cavity through the ______
sphendopalatine foramen
91
pterygopalatine communicates with the orbit through the _______
inferior orbital fissure
92
pterygopalatine communicates with the middle cranial through the ______
foramen rotundum
93
Contents of the pyterygopalatine fossa
pyterygopalatine gg
Pyterygopalatine part of the maxillary N
Terminal part of the maxillary A
94
where is the terminal portion of the maxillary A located?
pyterygopalatine fossa
95
name the 5 terminal branches of the maxillary artery that are located in the pterygopalatine fossa
posterior superior alveolar
infraorbital
sphenopalatine
artery of pterygoid canal
pharyngeal
descending palatine
96
posterior superior alveolar is a branch of the ____
maxillary A
97
infraorbital A is a branch of the ___ A
maxiallry A
98
what are the 3 portions of the maxillary N located in the pterygopalatine fossa
1. zygomatic nerve
2. pterygopalatine nerve
2. infraorbital N
99
What is the termninal branch of the maxillary art
infraorbital N
100
What are the two branches off the zygomatic nerve (f the maxillary N )
zygomaticofacial
| zygomaticotemporal
101
pterygopalatine gg is a _____ gg
PS
102
____gg is where the facial N branches to form the greater petrosal N
geniculate gg
103
Facial N houses _______ fibers
pre gg PS
104
The facial N exits the skull through the _____
internal auditory meatus
105
After the geniculate gg, the facial N branches to form the ______ N
chorde tempani
106
The greater petrosal N joins with the _______ N to form the N of the pterygoid canal
deep petrosal (SP)
| originates from the cervical gg
107
The internal carotid Plexus gives off the ______ which joins with the greater petrosal N to form the N of the pterygoid canal
Deep Petrosal (SP)
Originates from the cervical gg
108
Where does the deep petrosal N originate from?
the internal carotid SP plexus that comes from the CERVICAL GG
109
The N. of the pterygoid synapse at the ______ gg
pterygopalatine
110
The N. of the pterygoid canal synpase at the pterygopalatine gg to give off the _____N
pterygopalatine (Post gg PS) N
111
Post gg PS innervation to the lacrinal, palatine, mucosal gland comes from the ______gg
pterygopalatine gg
112
c.c. xerophalmia can be cause by ?
infection of the pterygopalatine gg through an infection of the mandibular notch
113
c.c. an infection through the pterygopalatine gg can cause?
infection of the pterygopalatine gg
- dry eyes: xeophalmia
- dry nose: the palatine glands cant secrete mucous
