TMJ and Blood Supply Flashcards
1
Q
T/F: spasms in either the SCM and trapezius muscles can refer pain to the TMJ
A
true
2
Q
T/F: The left common carotid artery branches directly off the aortic arch
A
true
3
Q
T/F: The right subclavian artery branches directly off the aortic arch
A
false; left subclavian
4
Q
T/F: Bruxism is a process of the CNS rather than mastication process
A
true
5
Q
T/F: Clenching is caused by malocclusion
A
false; compression
6
Q
T/F: Most TMJ symptoms come from the joint disc
A
false
7
Q
T/F: Joint sounds are not reliable indicators of TMD since they can change over time in a patient
A
true
8
Q
T/F: The normal condition is for the teeth to be slightly parted at rest and the muscles relaxed
A
true
9
Q
T/F: The power stroke involves a movement from a laterally deviated position back to the midline
A
true
10
Q
T/F: The rotational movement of the TMJ occurs mainly between the disc and the condyle of the mandibular in the upper synovial cavity
A
false
11
Q
T/F: The pterygoid plexus of veins may be involved in the spread of infection to the cavernous venous sinus
A
true
12
Q
T/F: The venous sinuses are located in the meninges of the brain
A
true
13
Q
T/F: Elevation and retraction of the mandible involves both gliding in both upper synovial cavities and rotation in both the lower synovial cavities
A
true
14
Q
T/F: The external carotid artery has no branches in the neck
A
False
15
Q
T/F: The gliding movement of the TMJ occurs mainly between the disc and the articular eminence of the mandible in the upper synovial cavity
A
false
16
Q
T/F: The posterior area of attachment of the disc to the capsule is one of the places where nerves and blood vessels enter the joint
A
true
17
Q
T/F: Veins are generally larger and more numerous than arteries in the same tissue area
A
true
18
Q
T/F: The internal jugular originates in the cranial cavity
A
true
19
Q
T/F: The rotational movement of the TMJ occurs mainly between the disc and the condyle of the mandibular in the synovial cavity.
A
true
20
Q
All of the following run in the carotid sheath except
A
hypoglossus
21
Q
The external jugular terminates into the
A
subclavian vein
22
Q
The brachiocephalic vein unite to form the
A
superior vena cava
23
Q
Another name for a heart attack is
A
myocardial infarction
24
Q
Most of the tissues of the head and neck is drained by the
A
internal jugular v.
25
Tissue destruction is termed
gangrene
26
Another name for stroke is
cerebrovascular accident
27
The lateral scalp area is drained by the _____ into the _____
superficial temporal and posterior auricular vein
| retromandibular and external jugular vein
28
The mandibular teeth and submental region is drained by the _____ into the _____
inferior alveolar vein
| pterygoid plexus of veins
29
Blood drains from the pterygoid plexus into the
maxillary v.
30
The pterygoid plexus protects the
maxillary a.
31
The cavernous venous sinus is located on each side of the body of the
sphenoid bone
32
Landmark located on the mandible
coronoid process
33
Protrusions of the mandible primarily involves
bringing jaw forward
34
Structure secretes synovial fluid
inner membrane lining of capsule
35
Which of the following about the TMJ is false
gliding movements
36
Artery that anastomoses with the anterior superior alveolar artery
posterior superior alveolar artery
37
A venous sinus of the vascular system is a
blood filled space between 2 layers of tissue
38
Blood vessel lesion may result when a clot on inner blood vessel wall becomes dislodged and travels in the vessel
embolus
39
Vein results from merger of superficial temporal vein and the maxillary vein
retromandibular vein
40
Vein that drains the tissue of the orbit
ophthalmic
41
Lower lip area drained by _____ into ______
inferior labial vein
| facial vein
42
Artery and foramen pair matched correctly
middle meningeal and foramen spinosum
43
Structures are similar vessels that branch off an arteriole to supply blood directly to the tissue
capillary
44
Ligament that is vestige of Meckel’s cartilage
sphenomandibular ligament
45
Ligament that forms reinforcement of the capsule of the TMJ
temporomandibular ligament
46
Ligament that is landmark for administration of a local anesthetic for inferior alveolar block
sphenomandibular ligament
47
Depression and protrusion occurs
speech and mastication
48
Suprahyoids would be involved in
depression and protrusion of mandible
49
Ligament that runs from styloid process of temporal bone to the angle of the mandible
stylomandibular ligament
50
Bilateral contraction of posterior portion of temporalis would cause
retraction of mandible
51
Gliding in one upper synovial cavity and rotation in the opposite upper synovial cavity will cause
lateral deviation
52
Bilateral contraction of lateral pterygoids will cause
protrusion of mandible
53
Muscles involved in elevation and retraction of mandible except
lateral pterygoid
54
Habitual grinding of teeth is termed
bruxism
55
TMJ can be palpated just anterior to the
external acoustic meatus of each ear
56
Prolonged holding of teeth together by masticatory muscles is termed
clenching
57
Muscles, when fully contracted, helps close the jaw
temporalis
58
Dislocation of both TMJ joints defines
subluxation
59
Left lateral excursion of mandible is accomplished by
contraction of right; relaxation of left
60
Patients jaw deviates to left when protruding mandible. Which muscle unable to contract
left lateral pterygoid
61
Terminal branches of external carotid artery are
superficial temporal a. and maxillary a.
62
Branches of facial artery except
supraorbital a.
63
Not a branch of external carotid
vertebral a.
64
Lingual artery arises from what artery
external carotid a.
65
Supplies blood to TMJ
superficial temporal and maxillary branches
66
Blood supply to maxillary molar teeth is through what artery
posterior superior alveolar a.
67
Extensive bleeding from a fractured neck of the mandible with medial displacement would most likely be due to rupture of which branch of maxillary artery
inferior alveolar a.
68
Major artery that extends through pterygopalatine fossa
maxillary a.
69
Artery that courses through optic foramen and supplies orbit and its content including eyeball
ophthalmic a.
70
Artery transverses the zygomatic bone
transverse facial artery
71
First branch of external carotid artery
superior thyroid a.
72
Provides most reliable arterial pulse of body
common carotid a.
73
Disc of TMJ attached laterally and medially to the
poles of condyle
74
Helps stabilize TMJ but not part of TMJ
sphenomandibular ligament
75
The _____ division of the trigeminal nerve innervates the TMJ
V3
76
The posterior collagenous lamina functions to
keep disc being pulled too far back
77
The temporomandibular ligament is found in the
lateral part of the capsule
78
Pain in area of TMJ coming from other areas is known as _____ pain
referred
79
When disc of TMJ deranged, it is usually
displaced anteriorly
80
Posterior elastic lamina functions to
pulls discs backward
81
Arteries supplies blood to oral cavity
lingual artery
maxillary artery
palatal artery
mental artery
82
Artery that supplies all of maxillary posterior teeth
posterior superior a.
83
Artery supplies all of tongue
lingual a.
84
Branches of internal carotid artery
none
85
Blood supply to muscles of mastication from _____ artery
maxillary
86
Vein that may be injured in anesthesia of the posterior superior alveolar nerve
pterygoid plexus
87
If the posterior Retromandibular vein is absent on one side, what is true
external jugular v. smaller; internal jugular v. larger
88
If PSA artery were blocked, how would blood get to maxillary molars?
anterior superior alveolar a.
89
Landmark of TMJ on mandible
coronoid process
90
Structure that maxillary artery does not supply
covering of brain
91
Muscle can become enlarged with parafunctional habit of Bruxism
masseter muscle
92
Blood vessel that could most likely be pierced doing PSA nerve block
pterygoid plexus
93
Teeth may cause sensations suggesting carious lesion or endodontic situation when only sinus infection diagnosed
maxillary posterior
94
Stenosis of bicuspid valve is likely to initially cause a backup of blood in the
left atrium
pulmonary veins
lungs
95
Floor of mouth and tongue receive blood supply by way of
lingual artery
96
Type of blood vessels carries blood to tissues
arteries
97
Arteries that carry deoxygenated blood
pulmonary arteries
98
Systolic pressure represents
ventricular contraction
99
Common artery used for determining pulse rate in conscious adult
radial
100
Mitral valve separates
left atrium and left ventricle
101
Nasopalaitine nerve enters oral cavity by way of
incisive foramen
102
Arterial pulse indicates
number of times heart contracts
103
Diastolic BP is pressure exerted by blood on walls of
arteries when heart is at rest
104
First of the three arteries that arise from aortic arch
brachiocephalic a.
105
Muscle contracts in order to cause jaw to protrude
lateral pterygoid muscle
106
Artery that does not originate from external carotid artery
ophthalmic a.
107
Vertebral arteries pass upward through transverse foramina and enter skull through foramen magnum. Inside skull the two vertebral arteries join to form one artery, the
basilar a.
108
Ophthalmic artery is branch of _____ carotid artery
internal
109
Vein arises from dorsal abdomen wall and passes upward through aortic hiatus of diaphragm , and then terminates by emptying into superior vena cava just above heart
azygos vein
110
Sequence of blood flow through heart to lungs, its return to heart and out of the heart to systemic circulation
superior & inferior vena cava-->right atrium...C
111
Valves that prevents back flow of deoxygenated blood
pulmonary and right atrioventricular valves
112
Oxygenated blood flows through which structure
coronary arteries
113
Maxillary artery is branch of
external carotid
114
Basilar artery is anterior and inferior to the
Pons
115
Buccal gingiva of mandibular molars is supplied by
buccal a.
116
Direct branch off of aorta except
right common carotid a.
117
Route of blood supply to the right side of face
E. left ventricle-->aorta-->brachiocephalic a.-->common carotid a.-->external carotid a.-->facial a.
118
Order of blood flow
D. vena cava-->right atrium-->tricuspid valve-->right ventricle-->pulmonary valve-->lungs-->left atrium-->mitral valve-->left ventricle-->aortic valve-->aorta
119
Maxillary anterior teeth supplied by
anterior superior alveolar a.
120
End of maxillary artery is the
sphenopalatine
121
Maxillary posterior teeth, maxillary sinus, and posterior buccal mucosa of upper posterior teeth is supplied by
posterior superior alveolar a.
122
Soft palate supplied by
lesser palatine a.
123
Artery runs laterally through coronoid notch of ramus
masseteric a.
124
Buccal gingiva and mucosa from premolars to incisors and mucosa of lower lip supplied by
mental a.
125
Mental artery direct branch from
inferior alveolar a.
126
Components of pterygopalatine fossa branches of maxillary artery except
buccal
127
Components of infratemporal fossa branches of maxillary artery except
posterior alveolar
128
Artery is terminal branch of external carotied artery
maxillary a.
129
Ventral surface of tongue and floor of mouth supplied by
sublingual a.
130
Deep posterior part of tongue supplied by
dorsal lingual a.
131
Artery branches off external carotied below facial artery
lingual a.
132
External jugular veins empty into
subclavian v.
133
Anterior Retromandibular vein joins facial vein and forms the
common facial v.
134
Posterior Retromandibular vein joins the posterior auricular vein and forms the
external jugular v.
135
The ____ vein is formed by an intertwining network of veins know as pterygoid plexus of veins
maxillary
136
Artery ascends the side of neck, runs deep to submandibular gland, crosses lower borer of mandible just in fron of angle of mandible
facial a.
137
Artery emerges through incisive foramen
nasopalatine a.
138
Statement concerning pterygoid plexus correct
injury can lead to hemotoma
139
Superficial temporal v. and maxillary v. join to form the
retromandibular v.
140
Middle meningeal a. enters skull through
foramen spinosum
141
PSA artery branches from the
maxillary a.
142
IA artery branches from the
maxillary a.
143
Deep lingual a. branches from the
lingual a.
144
What fossa does maxillary a. branch to supply all muscles of mastication
infratemporal fossa
145
Angular a. branches from
facial a.
146
Formina for PSA is on what bony structure
maxillary tuberosity
147
Deep lingual a. supplies
apex of tongue
