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Anatomy 6513 UNIT 2 > Parotid, Temporal, TMJ > Flashcards

Parotid, Temporal, TMJ Flashcards

(95 cards)

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1
Q

What is found within the parotid gland?

A

parotid gland
retromandibular vein
external carotid artery
facial nerve (CN 7)

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2
Q

The parotid gland is found just inferior to the ____

A

external acoustic meatus

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3
Q

If the parotid gland swells, what happens to the ear?

A

it is pushed superolaterally

= mumps

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4
Q

Which portion of the external carotid artery is found deep within the parotid gland?

A

distal external carotid artery is found deep within the parotid gland

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5
Q

The external carotid artery is deep to and parallel with ____

A

retromandibular vein

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6
Q

Where is the external carotid artery relative to the mandible?

A

the external carotid artery is posterior to the neck of the mandible

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7
Q

External carotid artery splits into 2 terminal branches: ___ and __

A

superfical temporal artery

maxillary artery

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8
Q

Facial nerve exits cranium at ___

A

stylomastoid foramen

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9
Q

Facial nerve forms ____ within the parotid gland

A

parotid plexus

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10
Q

The parotid plexus if formed by ____ in the parotid gland

A

facial nerve

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11
Q

The facial nerve branches emerge and fan out over all _____

A

lateral aspects of the face

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12
Q

Facial nerve innervates ___

A

mm of facial expression

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13
Q

Name the branches of facial nerve

A 
Temporal n
Zygomatic n
Buccal n
Marginal Mandibular n
Cervical n
Posterior Auricular n
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14
Q

What are the two spaces found in the temporal region?

A

temporal fossa

infratemporal fossa

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15
Q

T/F: temporal fossa and infratemporal fossa are continuous

A

true

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16
Q

What structure lies between the temporal fossa and the infratemporal fossa?

A

zygomatic arch

line of demarcation bw them

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17
Q

What kind of fascia is found in the temporal fossa?

A

temporal fat pad

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18
Q

Where is the temporal fat pad found?

A

in the temporal fossa

between temporalis muscle and lateral pterygoid muscle

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19
Q

The temporal fat pad encloses the _____ and fills the ___

A

encloses the temporal fossa and fills the temporal region

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20
Q

What muscles are found in the temporal fossa?

A

temporalis

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21
Q

In the temporal fossa, temporalis m. is covered by___

A

thick temporal fascia

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22
Q

What muscle is not technically in the temporal fossa, but works closely with the muscle that IS found in the temporal fossa?

A

masseter muscle is not in the temporal fossa but works with temporalis muscle to elevate the mandible

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23
Q

What arteries are found in the temporal fossa?

A

middle temporal a
superficial temporal a
deep temporal a

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24
Q

What nerves are found in the temporal fossa?

A

CN V3 (auricolutemporal nerve and anterior/posterior deep temporal nn)

CN 7: temporal branches

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25
CN V3 comes through what foramen when it goes to temporal fossa?
foramen ovale
26
Auriculotemporal nerve (from CN V3) travels with ____
superficial temporal artery/vein
27
Auriculotemporal nerve (from CN V3) runs deep to the ____
parotid gland
28
Auriculotemporal nerve (from CN V3) runs posterior to the ____
TMJ
29
Auriculomteporal nerve (from CN V3) runs between what 2 structures?
between the auricle and the condyle
30
Auriculotemporal nerve (from CN V3) provides sensory to what areas?
TMJ and lateral scalp
31
Auriculotemporal nerve (from CN V3) provides what innervation besides sensory?
parasympathetics form CN 9 to the parotid gland
32
Anterior/Posterior Deep Temporal nn (from CN V3) pass superior to the ____
lateral pterygoid muscle
33
Anterior/Posterior Deep Temporal nn (from CN V3) pass deep to ___
temporalis muscle
34
What branches of CN 7 are found in the temporal fossa
temporal branches of CN 7
35
What is the lateral border of the infratemporal fossa
ramus and coronoid process of the mandible
36
Wha tis the medial border of the infratemporal fossa
lateral pterygoid plate of sphenoid superior constrictor muscle pyramidal process of palatines
37
What is the anterior border of the infratemporal fossa?
maxilla (posteiror part)
38
What is the posterior border of the infratemporal fossa?
There is no anatomical "floor" The space ends when the medial pterygoid muscle connects to the mandible
39
What is the roof of the infratemporal fossa?
greater wing of sphenoid and temporal bone
40
What foramen are found on the roof of infratemporal fossa?
foramen ovale - more anteriorly | foramen spinosum - more posteriorly
41
Foramen ovale and foramen spinosum are found on the roof of what anatomical space?
infratemporal space
42
What muscles are found in the infratemporal space?
temporalis m medial pterygoid muscle lateral pterygoid muscle
43
Describe temporalis muscle course through temporal fossa and infratemporal fossa
Temporalis muscle is continuous through these two continuous spaces
44
What is the action of medial pterygoid muscle
protract, rotate, elevate the mandible
45
What is the action of lateral pterygoid muscle
protract, rotate, depress the mandible
46
Why is the masseter muscle not in the infratemporal fossa?
masseter muscle is too lateral (it is passed the ramus of the mandible) the lateral border of the infratemporal fossa is the ramus of the mandible (and coronoid process of mandible)
47
What main artery is found in the infratemporal fossa?
maxillary artery
48
What is the venous drainage for the infratemporal fossa?
pterygoid plexus
49
What is the main ganglion found in infratemporal fossa?
otic ganglion (found on medial V2 just after foramen ovale)
50
Where is otic ganglion found?
just after foramen ovale in infratemporal space found on medial V2
51
What fibers run towards the otic ganglion?
lesser petrosal nerves
52
What branch of V2 is found in the infratemporal fossa?
posterior superior alveolar nerve
53
V3 has two roots one large ___ root, and one small ___ root.
large sensory | small motor
54
V3 sensory and motor roots unite just after ___
passing through foramen ovale (so now in infratemporal space)
55
V3 has an immediate branch in infratemporal fossa that goes to the cranial vault. It is ____
meningeal branch
56
Meningeal branch of V3 branches of ___
immediately (in the cranial vault)
57
What are the anterior/posterior roots of V3?
anterior - small, motor | posterior - large, sensory
58
The anterior motor root of V3 has 1 sensory component. What is it?
buccal nerve
59
The posterior sensory root of V3 has 1 motor component. What is it?
mylohyoid nerve
60
The nerves of mastication in the infratemporal fossa come from which branch of V3?
the anterior motor branch
61
What are the nerves of mastication?
masseteric nerve deep temporal nerve medial/lateral pterygoid nerve
62
The masseteric nerve travels with ____ to innervate ___
masseteric artery to innervate massteter muscle
63
The masseteric nerve travels through ___
mandibular notch
64
The deep temporal nerve travels with ___ to innervate ____
deep temporalis artery to supply temporalis muscle (runs DEEP to temporalis muscle)_
65
Medial/Lateral Pterygoid Nn travel with ____ to innervate ___
pterygoid aa to supply medial/lateral pterygoid mm
66
What are the main posterior sensory branches off of V3?
auriculotemporal nerve lingual nerve inferior alveolar nerve
67
inferior alveolar nerve (sensory branch off of posterior division of V3 in infratemporal fossa) goes through what foramen?
mandibular foramen
68
What special sensory nerve is found in the infratemporal fossa?
chorda tympani
69
Chorda tympani is a special sensory branch from CN __
7
70
Chorda tympani joins with ___ nerve posteriorly
lingual
71
Chorda tympani supplies parasympathetics to ____
lower 2 salivary glands
72
How do lower 2 salivary glands receive parasympathetic innervation?
chorda tympani
73
Chorda tympani gives receives taste fibers from ___
anterior 2/3 of tongue
74
What kind of joint is the TMJ?
modified hinge (synovial joint)
75
There is a relatively lax ____ surrounding the TMJ
articular capsule
76
There is a lateral thickening to the TMJ which is _____
temporomandibular ligament
77
The articular disc is located between ____
temporal bone adn mandible
78
What movements take place at the articular disc?
hinge and gliding
79
What are the 3 ligaments associated with the TMJ
sphenomandibular stylomadibular lateral temporomandibular ligament
80
What muscles help the jaw protrude from TMJ?
lateral pterygoid m | is assisted by medial pterygoid muscle
81
What muscles help the jaw retract from TMJ?
posterior fibers of temporalis m deep part of masseter m geniohyoid m digastric m
82
What muscles help the jaw elevate from TMJ?
temporalis m masseter m medial pterygoid m
83
What muscles help the jaw depress from TMJ
digastric geniohyoid mylohyoid and gravity lol
84
The superior surface of the articular disc has a ____ shape
concavoconvex
85
The superior surface of the articular disc is CONCAVOCONVEX to allow proper alignment with ___
articular tubercle and mandibular fossa
86
The inferior surface of the articular disc has a ____ shape
concave
87
The inferior shape of the articular disc has a CONCAVE shape to allow proper alignemnt with ___
the mandibular condyle
88
The articular disc has ____ towards the periphery for ____
increased thickness towards the periphery This is for attachment to the articular capsule
89
The articular capsule connects to the articular discs where?
at the lateral thickenings towards the periphery of the articular disc That is where the articular capsule connects to the articular disc
90
The stylomastoid ligament runs from the ___ to the ___
styloid process to the posterior ramus of the amndible
91
Stylomandibular ligament separates ____ and ___
parotid gland from submandibular gland
92
What separates the parotid gland from the submandibular gland?
Stylomandibular ligament
93
The sphenomandibular ligament runs from ___ to ___
from spine of sphenoid bone to lingula of mandible
94
The sphenomandibular ligament is separated from the capsule via _____
maxillary artery and auriculotemporal nerve
95
What are the arteries found in teh TMJ region?
TMJ branch from superior temporal a Anterior tympanic a Deep auricular a

Anatomy 6513 UNIT 2 (14 decks)

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