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DPT 701: Clincal Anatomy > Facial Expression and Mastication > Flashcards

Facial Expression and Mastication Flashcards

(73 cards)

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1
Q

Describe the layers of the SCALP

A 
Skin
Connective tissue
Aponeurosis- Galea aponeurotica
Loose connective tissue
Pericranium
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2
Q

what is Galea Aponeurotica

A

links the frontalis and occipitalis muscles

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3
Q

what is in the loose connective tissue and what is the danger

A

emissary v drain to cranial sinus

spread infection

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4
Q

what makes up the temporomandibular joint

A

fibrocartilage disc and ligaments

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5
Q

what is in the superior compartment of the fibrocartilage disc and what movement does it do

A

mandibular fossa sup and disc inf

translational movement

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6
Q

what is in the inferior compartment of fibrocartilage disc and what does it do

A

disc sup and mandibular condyle inf

rotational movement

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7
Q

what are the TMJ motions

A

depression vs elevation
protrusion vs retraction
side to side extrusion

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8
Q

what muscles do protrusion of the jaw

A

lateral pterygoid assisted by medial pterygoid

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9
Q

what muscles do retraction of the jaw

A

post. fibrs temporalis, deep masseter, geniohyoid, digastric

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10
Q

what muscles elevate the jaw

A

temporalis, masseter, medial pterygoid

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11
Q

what muscles depress the jaw

A

digastric, geniohyoid, mylohyoid

gravity

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12
Q

what causes TMJ popping or clicking

A

hypermobile joint capsule
tight lateral pterygoid muscle
damage to the disc ant against articular tubercle
mandibular condyle reduces to the disc

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13
Q

what is the boundary for the infratemporal fossa

A

deep to zygomatic arch and ramus of mandible

post. maxilla and bordered by lateral pterygoid plate

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14
Q

what are the contents of the infratemporal fossa

A 
lower temporalis
lat and med pterygoid
maxillary a
pterygoid venous plexus
otic ganglion
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15
Q

what are the boundary of the pterygopalatine fossa

A 
roof- greater wing sphenoid
medially- perpendicular plate of palatine
anteriorly- posterior maxilla
posteriorly- pterygoid process
floor- pyramidal process of palatine
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16
Q

what are the contents of the pterygopalatine fossa

A

pterygopalatine ganglion

pterygopalatine part of maxillary a

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17
Q

what are the branches of the facial n

A 
temporal
zygomatic
buccal
mandibular
cervical
posterior auricular

two zebras bit my cookies

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18
Q

what muscles do the facial n provide somatic motor for

A

stapedius
stylohyoid
digastric
facial expression muscles

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19
Q

what ganglions are supplied by the facial n

A

pterygopalatine ganglion

submandibular ganglion

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20
Q

describe the pterygopalatine ganglion

A

lacrimal glands, nasal, palatine mucosa (greater petrosal n)

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21
Q

describe the submandibular ganglion

A

submandibular and sublingual salivary glands (chorda tympani)

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22
Q

what is the visceral sensation of the facial n

A

taste ant 2/3 tongue

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23
Q

what is the somatic sensation of the facial n

A

external ear

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24
Q

what nerve comes of the ophthalmic branch

A

supraorbital n

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25
what nerve comes off the maxillary branch
infraorbital n
26
what nerve comes off the mandibular branch for sensory
mental n
27
what muscles are innervated by the mandibular branch
suprahyoid, tensor tympani, tensor veli palantini
28
which nerve detects sensory input at the mandibular angle
greater auricular n
29
what are the branches of the external carotid arteries
``` lingual a facial a ascending pharyngeal a ascending palatine a superficial temporal a maxillary a ```
30
what artery is crucial for facial expression
facial a
31
what are the branches of the maxillary a
``` middle meningeal a inferior alveolar a greater and lesser palatine a sphenopalatine a deep temporal a ```
32
functions of buccinator
connects orbicularis oris and superior pharyngeal constrictor holds food in mouth and forcefully blows air out
33
what are the functions for orbicularis oculi
closes eyelids orbital- wink tightly palpebral- blink relex
34
what are the afferent and efferent nerves for orbicularis oris
afferent- CN V1 | efferent- CN VII
35
proximal and distal attachments of zygomaticus major
lateral zygomatic bone | angle of mouth
36
how do you tell if its a true smile or a fake smile
true smile- symmetrical | fake smile- nonsymmetrical
37
proximal and distal attachments for medial pterygoid
1. medial lateral pterygoid and pyramidal palatine bone 2. tuberosity of maxilla medial mandibular ramus and angle
38
innervation and blood supply for medial pterygoid
CN V medial pterygoid n | maxillary a pterygoid branch
39
functions of medial pterygoid
elevate and protract mandible
40
proximal and distal attachments of lateral pterygoid
1. infratemporal surface and greater wing sphenoid -> joint capsule 2. lateral surface of lateral pterygoid plate -> mandibular condyle
41
innervation and blood supply for lateral pterygoid
CN V lateral pterygoid n | maxillary a pterygoid branch
42
functions for lateral pterygoid
protract mandible
43
proximal and distal attachment for temporalis
temporal fossa | coronoid process and ant mandibular ramus
44
innervation and blood supply for temporalis
CN V deep temporal branch | ant and post deep temporal a
45
functions of temporalis
elevate and retract
46
proximal and distal attachments for masseter
zygomatic bone and arch | lateral mandibular ramus and angle
47
innervation and blood supply for masseter
CN V masseteric n | masseteric a
48
functions of masseter
elevate and protract mandible
49
what do/are the extrinsic muscles of the tongue do
mobilize the tongue palatoglossus- up and down styloglossus- back and forth hyoglossus- back and flat genioglossus- pull tongue forward
50
what do/are the intrinsic muscles of the tongue
change shape- curving and narrowing superior longitudinal vertical transversus inferior londitudinal
51
what nerves innervate the tongue muscles
palatoglossus- CN X | all others are CN XII
52
why do the two sided tongue muscles antagonize themsleves
to have muscle balance affected side=deviation
53
what nerves does the hypoglossal n provide a shuttle for
C1 motor to geniohyoid, thyrohyoid, superior root of ansa cervicalis inferior root ansa cervicalis= C2-3
54
what ganglion provides PS motor to the parotid galnd
otic ganglion- CN IX, lesser petrosal n, comes through foramen ovale or spinosum
55
what ganglion provides PS motor to the submandibular/sublingual glands
submandibular ganglion- CN VII, chorda tympani
56
CN VII dorsal nerves innrevate
scalp
57
CN VII ventral n innervates
face
58
an upper motor injury of CN VII results in
``` contralateral facial paralysis scalp spared can elevate eyebrows facial drop- difficult to close eyes/mouth, drooling, tears limbic lobe spared unequal smile unless with humor ```
59
a lower motor injury can result in
damage in and below the lower motor nuclei ipsilateral scalp and facial paralysis can't elevate eyebrows facial drop- difficult to close eyes/mouth, drooling, tears dry eye and mouth IF greater petrosal n too NO equal smile for all LMN pt
60
what are the 4 ganglions in the head
ciliary submandibular pterygopalatine otic
61
what nerves shuttle off of V1
ciliary n | lacrimal n
62
what nerve shuttles off of V2
zygomatic n
63
what nerves shuttle off of V3
lingual n | auriculotemporal n
64
what nerves come off the ciliary ganglion
ciliary n
65
what nerves come off the pterygopalatine ganglion
zygomatic n | lacrimal n
66
what nerve comes off the submandibular ganglion
lingual n
67
what nerve comes off the otic ganglion
auriculotemporal n
68
what nerves come off V3 of first fibers
tensor tympani tensor veli palatini medial pterygoid meningeal
69
which of the first fibers of V3 is sensory
meningeal
70
what comes off V3 of anterior division
temporal massester lateral pterygoid buccal
71
which of the anterior division of V3 is sensory
buccal buccal with facial n is motor
72
what are the nerves off of V3 posterior division
lingual inferior alveolar mylohyoid auriculotemporal
73
which of the posterior division n of V3 is motor
mylohyoid

DPT 701: Clincal Anatomy (12 decks)

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