Block 3 Flashcards
(206 cards)
1
Q
Origin of mylohyoid
A
mylohyoid line
2
Q
insertion of mylohyoid
A
mylohyoid raphe/ body of hyoid
3
Q
action of mylohyoid
A
support for floor of mouth/swallowing reflex
4
Q
nerve to mylohyoid innervates?
A
mylohyoid/ ant. belly of digastric
5
Q
origin of geniohyoid
A
inferior mental spines
6
Q
insertion of geniohyoid
A
body of hyoid
7
Q
action of geniohyoid
A
pull hyoid anteriorly/superiorly, depress mandible, support floor of mouth, swallowing
8
Q
innervation of geniohyoid
A
C1 via XII
9
Q
origin of genioglossus
A
superior mental spines
10
Q
insertion of genioglossus
A
blends with intrinsic tongue muscles/ hyoid
11
Q
action of genioglossus
A
inferior fibers: protraction; superior fibers: retraction; swallowing
12
Q
origin of hyoglossus
A
greater horn and body of hyoid
13
Q
insertion of hyoglossus
A
sides of tongue
14
Q
action of hyoglossus
A
draws down on sides of tongue flattening it, retraction
15
Q
origin of styloglossus
A
styloid process
16
Q
insertion of styloglossus
A
sides of tongue
17
Q
action of styloglossus
A
pulls tongue posteriorly
18
Q
origin of palatoglossus
A
palatine aponeurosis
19
Q
insertion of palatoglossus
A
sides of tongue
20
Q
which muscle forms the anterior tonsillar pillars?
A
palatoglossus
21
Q
which is the tongue muscles to be innervated by X instead of XII?
A
palatoglossus
22
Q
lesion of XII on one side deviates tongue toward the…
A
lesioned side
23
Q
completely mucus saliva?
A
sublingual
24
Q
serous saliva?
A
parotid
25
mixed saliva?
submandibular
26
which nerves course on the superficial surface of hyoglossus?
lingual nerve (superiorly), XII (inferiorly)
27
what courses deep to hyoglossus?
lingual artery
28
Lingual nerve?
GSA from anterior 2/3 of tongue, floor of mouth, lingual gingiva of mandible
29
cell bodies of lingual nerve?
semilunar or trigeminal ganglion
30
where is the trigeminal ganglion?
anterior slope of the petrous portion of the temporal bone in middle cranial fossa
31
which division of V has a motor component?
V3
32
origin of platysma
fascia covering the upper parts of pec major and deltoid
33
insertion of platysma
the mandible and skin of the lower part of the face and corner of the mouth
34
action of platysma
draws down on the corners of the mouth and upward on skin of the chest
35
the broad tendinous sheet that unites the frontal and occipital bellies of the epicranius?
galea aponeurotica
36
origin of occipitalis
superior nuchal line
37
insertion of occipitalis
galea
38
origin of frontalis
galea
39
insertion of frontalis
skin of eyebrows and root of nose
40
action of frontalis
elevates eyebrows
41
origin of anterior/superior auricular mm.
galea
42
origin of posterior auricular m.
mastoid process
43
insertion of all auricular mm.
cartilage of ear
44
action of all auricular mm.
moves ear slightly
45
muscle surrounding orbital passage?
orbicularis oculi
46
origin of orbital part of orbicularis oculi
broad origin from the medial orbital margin between the supraorbital notch and the infraorbital foramen; tendinous origin from the medial palpebral ligament
47
short ligament arising from the frontal process of maxilla anterior to lacrimal sulcus?
medial palpebral ligament
48
orbital part of orbicularis oculi spreads...
widely around the bony margin of the orbit into the eyelid and cheek
49
origin of palpebral portion of orbicularis oculi
medial palpebral ligament
50
palpebral portion of orbicularis oculi spreads...
in subcutaneous tissue of eyelids
51
action of palpebral part of orbicularis oculi
eye lids are approximated in blinking and sleep
52
action of orbital part of orbicularis oculi
eye lids are more forcefully brought together
53
contractions of what m. move lacrimal secretions across the cornea to keep it moist?
orbicularis oculi
54
origin of corrugator supercilii
medial aspect of superciliary arch
55
insertion of corrugator supercilii
skin of medial half of eyebrow
56
action of corrugator supercilii
draws eyebrows together (vertical wrinkles)
57
origin of procerus
nasal bone
58
insertion of procerus
intermingles with frontalis and inserts into skin of lower forehead between eyebrows
59
action of procerus
horizontal wrinkles in skin of superior part of nose
60
origin of levator labii superioris alaeque nasi
upper part of frontal process of maxilla
61
insertion of levator labii superioris alaeque nasi
ala of nose and upper lip
62
action of levator labii superioris alaeque nasi
elevate upper lip and flares ala cartilages of nose
63
origin of nasalis
maxilla above canine teeth
64
insertion of nasalis
aponeurois on bridge of nose that is continuous with nasalis on other side
65
action of nasalis
compresses nasal cartilages and spreads aperture open
66
origin of buccinator
pterygomandibular raphe and alveolar ridges of maxilla and mandible
67
action of buccinator
helps to keep the bolus of food on the occlusal surface of the teeth
68
muscles of the cheek and important component of lips
buccinators
69
origin of levator labii superioris
inferior margin of orbit above infraorbital foramen
70
action of levator labii superioris
elevates upper lip
71
origin of levator anguli oris
below infraorbital formen
72
insertion of levator anguli oris
corner of mouth
73
origin of zygomaticus major
zygomatic bone
74
insertion of zygomaticus major
angle of mouth
75
action of zygomaticus major
raises angle of mouth and pulls corner laterally (smiling)
76
origin of zygomaticus minor
zygomatic bone
77
insertion of zygomaticus minor
inserts into upper lip with levator labii superioris
78
origin of depressor anguli oris
mandible
79
insertion of depressor anguli oris
skin at angle of mouth and lateral orbicularis oris fibers
80
action of depressor anguli oris
draws down on angle of mouth
81
origin of depressor labii inferioris
mandible
82
insertion of depressor labii inferioris
skin of lower lip and more medial fibers of orbicularis oris
83
action of depressor labii inferioris
draws lower lip downward
84
origin of mentalis
mandible below incisors
85
insertion of mentalis
skin of chin
86
action of mentalis
draws on skin of chin (dimple)
87
what does the facial artery terminate as near the medial margin of the orbit?
angular artery
88
Branches of facial artery?
submental, inf. and sup. labial
89
maxillary artery branches to face?
mental, buccal, infraorbital
90
internal carotid artery branches to face?
supraorbital and supratrochlear
91
Facial v. begins...
at medial corner of eye as convergence of supratrochlear and/or supraorbital and superior ophthalmic veins
92
communications of facial vv. with cavernous sinus
sup. and inf. ophthalmic vv. and pterygoid plexus
93
what connects facial v with pterygoid plexus?
deep facial vein
94
origin of masseter
zygomatic process of maxilla and lower border of zygomatic arch
95
insertion of masseter
lateral surface of most of coronoid process, ramus, angle of mandible
96
action of masseter
elevates the mandible
97
innervation of masseter
masseteric nerve from V3
98
what courses lateral to posterior digastric and stylohyoid
retromandibular vein
99
what is deep to posterior digastric and stylohyoid
ext. cartoid artery
100
order lateral to medial of contents of parotid
branches of VII, retromandibular vein, external carotid vein
101
the superficial temporal vein joins the maxillary vein to form?
retromandibular vein
102
pain fibers to the parotid capsule are from?
auriculotemporal of V3
103
what lies on the posterior aspect of the petrous part of temporal bone?
internal acoustic meatus
104
elevators of mandible
temporalis, masseter, medial pterygoid
105
depressors of mandible
digastric, geniohyoid, mylohyoid, gravity
106
protrudors of mandible
lateral pterygoid, medial pterygoid
107
retractors of mandible
posterior temporalis, deep masseter, geniohyoid, digastric
108
the temporal fascia spans between...
the superior temporal line and the zygomatic arch
109
origin of temporalis
deep surface of the temporal fascia (parts of parietal, frontal, sphenoid, temporal bones)
110
insertion of temporalis
coronoid process extending down the anterior border as far as the last molar tooth
111
innervation of temporalis
anterior and posterior deep temporal of V3
112
action of temporalis
elevate mandible (posterior fibers-retraction)
113
origin of medial pterygoid
medial surface of lateral pterygoid plate, infratemporal surface of maxilla
114
insertion of medial pterygoid
angle of mandible
115
action of medial pterygoid
elevate mandible
116
origin of lateral pterygoid
upper: IT surface of great wing; lower: lateral surface of lateral pterygoid late
117
insertion of lateral pterygoid
upper: articular disc; lower: pterygoid fovea
118
action of lateral pterygoid
open mouth, depress mandible
119
what passes through gap between medial and lateral pterygoid mm.
maxillary artery and buccal nerve
120
what type of joint is the TMJ
ginglymoarthroidal joint
121
lower joint cavity of TMJ
minor movement (up to 15 degrees) accomplished by rotation (lat. pterygoid is not required)
122
superior joint cavity of TMJ
movement of head onto articular tubercle- translation (lateral pterygoid required)
123
intrinsic ligament that strengthens the joint capsule laterally and prevents posterior disarticulation
lateral ligament
124
attachments of stylomandibular ligament
styloid process to angle of mandible
125
attachments of sphenomandibular ligament
spine of sphenoid to area around lingula and bone posterior to mandibular foramen
126
when does the sphenomandibular ligament become taught?
as the head of mandible moves out onto the articular tubercle
127
1st part of maxillary A.
section passing between the neck of mandible and the sphenomandibular ligament
128
2nd part of maxillary A.
lies on or deep to lateral pterygoid
129
branches of 1st part of maxillary A.
deep auricular, anterior tympanic, middle meningeal, accessory meningeal, inferior alveolar
130
how does the anterior tympanic artery pass into the tympanic cavity?
petrotympanic fissure
131
foramen for accessory meningeal artery
foramen ovale
132
branches of 2nd part of maxillary artery
anterior and posterior deep temporal, pterygoid, masseteric, buccal
133
the pterygoid plexus of veins gather to form a short...
maxillary vein
134
the motor root of V joins the sensory fibers of V3...
within or just inferior to foramen ovale
135
through what does the tympanic nerve of IX re-enter the skull
tympanic canaliculus
136
the lesser petrosal nerve enters the cranial cavity through what
hiatus of lesser petrosal nerve
137
roof of tympanic cavity?
tegman tympani
138
lesser petrosal nerve exits the skull through what?
foramen ovale
139
what does the chorda tympani pass through to get to the tympanic cavity
petrotympanic fissure
140
Branches of main trunk of V3
meningeal, medial pterygoid
141
Branches of medial pterygoid nerve
tensor tympani, tensor veli palatini
142
Branches of anterior division of V3
anterior and posterior deep temporal, masseteric, buccal, lateral pterygoid
143
the only sensory branch of ant. division of V3
buccal
144
branches of posterior division of V3
auriculotemporal, lingual, inf alveolar
145
what is deep to the main trunk of V3
otic ganglion
146
only motor n. in posterior division of V3
n. to mylohyoid
147
intrinsic muscle of the tongue
musculus uvulae
148
2 superior palatine muscles
levator veli palatini, tensor veli palatini
149
2 inferior muscles
palatoglossus, palatopharyngeus
150
All mm. of palate innervated by X except?
TVP (V3)
151
origin of TVP
scaphoid fossa, fibrous part of auditory tube
152
secondary function of TVP
popping of ears/opening of auditory tube
153
insertion of TVP
palatine aponeurosis
154
origin of LVP
petrous part of temporal bone anterior to carotid canal
155
insertion of LVP
palatine aponeurosis
156
Anterior ethmoidal n. V1 or V2?
V1
157
Nasopalatine n. V1 or V2?
V2
158
Posterior lateral nasal nn. are branches of?
palatine nn.
159
Anterior ethmoidal artery: ophthalmic or maxillary a?
ophthalmic
160
sphenopalatine artery: ophthalmic or maxillary a?
maxillary
161
what anastomoses with sphenopalatine artery in hard palate
greater palatine artery
162
From medial to lateral, foramina of posterior wall of PP fossa
pharyngeal canal, pterygoid canal, foramen rotundum
163
branches of 3rd part of maxillary artery
sphenopalatine artery(terminal branch), infraorbital, descending palatine, PSA, A of pterygoid canal, A of pharyngeal canal
164
3rd part of maxillary artery sends branches through every canal or foramen of pp fossa except...
foramen rotundum
165
branches of infraorbital a.
MSA, ASA
166
branches of descending palatine a.
greater and lesser palatine aa
167
zygomatic n. V1 or V2
V2
168
zygomatic a.: ophthalmic or maxillary
ophthalmic a.
169
pathway of greater petrosal n. to pp ganglion
hiatus of greater petrosal n., middle cranial fossa, carotid canal, foramen lacerum, pterygoid canal
170
what nn do the postganglionic parasympathetic fibers of pp ganglion travel on to get to lacrimal?
zygomatic (V2) and lacrimal (V1)
171
roof of orbit
orbital part of frontal, lesser wing of sphenoid
172
medial wall of orbit
ethmoid, frontal, lacrimal, sphenoid
173
inferior wall of orbit
maxilla, zygoma, palatine
174
lateral wall of orbit
zygoma, greater wing of sphenoid
175
branches of nasociliary n
communication to ciliary ganglion, long ciliary, infratrochlear, ant and post ethmoidal
176
What can the lacrimal artery anastomose with?
middle meningeal
177
zygomatic artery is a branch of?
lacrimal artery
178
origin of levator palpebrae superioris
lesser wing of sphenoid
179
insertion of LPS
ant. surface of tarsal plate
180
action of LPS
elevates upper lid
181
nerve to LPS
superior of III
182
common tendinous ring is the common origin of
sup., inf., med., lat. rectus
183
sclera of eye is common insertion of
sup, inf, med, lat rectus
184
action of sup. rectus
up and in, medial rotation
185
nerve to sup. rectus
superior of III
186
action of inf. rectus
down and in, lateral rotation
187
nerve to inf. rectus
inferior of III
188
action of med rectus
in
189
nerve to med rectus
inferior of III
190
action of lat. rectus
out
191
nerve to lat rectus
VI
192
origin of sup. oblique
body of sphenoid
193
insertion of sup. oblique
lateral, posterior, upper quadrant
194
action of sup. oblique
down and out, medial rotation
195
nerve to sup. oblique
IV
196
action of inf. oblique
up and out, lateral rotation
197
origin of inf. oblique
medial floor of orbit; maxilla lateral to nasolacrimal groove
198
insertion of inf oblique
lateral, posterior, lower quadrant
199
nerve to inf oblique
inferior of III
200
dilation of pupil
sympathetics
201
constriction of pupil and accommodation of lens
parasympathetics
202
compromised sympathetics to orbit region
horner's syndrome
203
miosis
constriction of pupil
204
ptosis
drooping of upper lid (sup. tarsal)
205
anhydrosis
loss of sweating
206
enophthalmos
sinking of globe into orbit
