Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

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

Facial Expression and Mastication Flashcards

1
Q

what are the boudndaries of the scalp

A

supraorbital margin superior nuchal line anterior to posterior

temporal fascia to zygomatic arch laterally

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what are the layers of the scalp

A 
Skin 
Connective tissue (dense)
Aponeurosis (Galea aponeurotic): links frontal and occipitals muscles 
Loose connective tissue
Pericardium
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what are the boundaries for the face

A

below supraorbital margin to the chin, ear to ear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

facial expressions are controlled by what

A

face and scalp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

where does the emissary vein drain to the cranial sinus and what is the significance of this

A

loose connective tissue of scalp

danger to possible infection spread

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

describe the location of the fibrocartilage disc of the temporomandibular joint

A

superior compartment: mandibular fossa is superior and disc is inferior = translational movement

inferior compartment: disc is superior and mandibular condyle inferior = rotational movement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what muscles assist in TMJ protrusion

A

lateral pterygoid assisted by medial pterygoid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what muscles assist in TMJ retraction

A

posterior fibers of temporalis, deep part of masseter, and geniohyoid and digastric

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what muscles assist in TMJ elevation

A

temporalis, masseter, and medial pterygoid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what muscles assist in TMJ depression

A

gravity, digastric, geniohyoid, and mylohyoid muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what causes TMJ popping or clicking

A

hypermobile joint capsule, tight pterygoid or damaged disc

all can place disc anterior against the articular tubercle

mandibular condyle reducing to the disc will cause clicking

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what are the boundaries of the temporal fossa

A

posterior and superior: temporal lines

anterior: frontal and zygomatic bones
lateral: zygomatic arch
inferiorly: infra temporal crest
floor: pterion
roof: temporalis fascia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what are the contents of the temporal fossa q

A

upper portion of temporalis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what are the boundaries of the infra temporal fossa

A

deep to zygomatic arch and ramus of mandible

posterior to maxilla

bordered by lateral pterygoid plate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what are the contents of the infatemporal fossa

A 
lower portion of temporalis miscles
lateral and medial pterygoid muscle 
maxillary artery 
pterygoid bvenous plexus 
mandibular, inferior alveolar, lingual, buccal, and Chora tympani nerves 
otic ganglion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what are the boundaries of the pterygopalatine fossa

A

roof: greater wing of sphenoid
medially: perpendicular plate of palatine
anteriorly: the posterior aspect of the maxilla
posteriorly: pterygoid process
floor: pyramidal process of palatine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

contents of the pterygopalatine fossa

A

pterygopalatine ganglion

pterygopalatine part of maxillary artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

where can you find the facial nerve

A

junction of pons and medulla oblongata

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

where does the facial nerve cross

A

crosses internal meatus

branches of nerve hike the trigeminal nerves

terminal branch crosses stylomastoid foramen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

somatic motor functions of the facial nerve

A

motor to stapedius = in middle ear

motor to 2 supra hyoid muscles = stylohyoid and digastric posterior belly

motor to facial expression muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

visceral motor (parasympathetic) functions of facial nerve

A

pterygopalatine ganglion: lacrimal glands, nasal and palatine mucosa (greater petrosal nerve)

submandibular ganglion: submandibular and sublingual salivary glands (chorda tympani)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

somatic sensation of the facial nerve

A

external ear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

visceral sensation of the facial nerve

A

taste to anterior 2/3 of the tongue = chemical sensation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

what branch of the facial nerve is implicated in the internal acoustic meatus after the genticulate ganglion

A

greater petrosal nerve

i.e. loss of lacrimal/sinys mucosal glands visceral motor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
what branch of the facial nerve is implicated before crossing the tympanic cavity
stapedial nerve hyperacusis (normal sounds = unbearably loud)
26
what branch of the facial nerve is implicated after crossing the tympanic cavity
chorda tympani chemical sensation
27
what branch of the facial nerve is implicated after leaving the stylomastoid foramen
digastric posterior belly stylohyoid terminal branch
28
What are the branches of the facial nerve that control facial expressions
``` Temporal Zygomatic Buccal Mandibular Cervical Posterior auricular ``` Two Zebras Bit My Cookies ** more of a network of nerves; not generally one individual branch isolated**
29
what are the three divisions of the trigiminal nerve
ophthalmic maxillary mandibular
30
what are the functions of the three divisions of the trigeminal nerve
``` opthalamic = purely somatosensory maxillary = purely somatosensory mandibular = mix of somatic motor and sensory ```
31
where do the 3 divisions of the trigeminal nerve cross
all are through the sphenoid bone ``` opthalamic = crossing superior orbital fissure maxillary = crossing foramen of rotundum mandibular = crossing foramen ovale ```
32
what are the terminal sensory branches of the opthalamic, maxillary, and mandibular nerves
opthalamic = terminal branch is supraorbital nerve maxillary = terminal branch is the infraorbital nerve mandibular = terminal sensory branch is mental nerve
33
what are the motor innervations of the mandibular nerve
muscles of mastication suprahyoid muscles tensor tympani tensor veli palatini
34
what are the first fiber branches of the mandibular nerve
tensor tympani tensor veli palatini medial pterygoid meningeal
35
what are the anterior division branches of the mandibular nerve
temporal masseter lateral pterygoid buccal
36
what are the branches of the posterior division of the mandibular nerve
lingual (with chorda tympani) inferior alveolar mylohyoid auriculotemporal
37
what are the facial branches of the external carotid artery
``` lingual artery facial artery ascending pharyngeal artery ascending palatine artery maxillary artery superficial temporal artery ```
38
what are the branches of the maxillary artery
``` middle meningeal artery inferior alveolar artery greater and lesser palatine artery sphenopalatine artery deep temporal artery ```
39
what artery is commonly associated with arteritis
superficial temporal artery
40
what artery is very torturous for facial expressions
facial artery
41
what artery is wrapped by the auriculotemporal nerve
middle meningeal artery
42
veins of the face drain how
drain into external and internal jugular veins drain into cavernous sinus
43
where do the emissary and diploid veins drain
drain into superior sagittal sinus directly
44
which facial muscle is not subcutaneous
the buccinator muscle
45
buccinator muscle connects what
orbicularis iris and superior pharyngeal constrictor
46
function of buccinator
hold food in mouth forcefully blow air put
47
the buccinator muscle is pierced by what
parotid duct
48
what is the tendinous junction of the buccinator called
pterygomandibular raphe
49
buccinator is deep to what
masseter/pterygoids parotid gland
50
zygomaticus major function
smile expression true and fake
51
orbicularis occult function
close eyelids wink tightly (orbital part) blink reflex (palpebral part)
52
what are the attachments of the medial pterygoid
1 head: medial surface of lateral pterygoid plate and pyramidal process of palatine bone (P) 2 head: tuberosity of maxilla (P) Distal: medial mandibular ramus and angle
53
innervation and blood supply of the medial pterygoid
CN V medial pterygoid nerve maxillary arter pterygoid branch
54
functions of the medial pterygoid
elevate and protract mandible
55
attachments of the lateral pterygoid
1 head: infra temporal surface and crest if greater wing of sphenoid (p) 2 head: lateral surface of the lateral pterygoid plate distal: superior head attaches to joint capsule and articular disc, inferior head attaches to pterygoid fossa on mandibular condyle
56
innervation and blood supply of lateral pterygoid
CN V lateral pterygoid nerve maxillary artery pterygoid branch
57
function of the lateral pterygoid
initiate mandibular motion protract mandible
58
temporalis attachments
p: temporal fossa and temporal fascia d: coronoid process and anterior mandibular ramus
59
innervation and blood supply of temporalis
CN V deep temporal branch anterior and posterior deep temporal artery
60
function of the temporalis muscle
elevate and retract mandible
61
what are the attachments for the masseter
two heads - zygomatic bone and zygomatic arch proximally distally, lateral mandibular ramus and angle
62
innervation and blood supply of the masseter
CN V masseteric nerve masseteric artery
63
function of the masseter muscle
elevate and protract the mandible
64
describe the divisions of the chemical sensation of the tongue
body= anterior 2/3 of tongue taste input, facial nerve CN VII root = posterior 1/3 tongue taste, glossopharyngeal CN IX epiglottis = CN X
65
describe the superior and inferior surface of the tongue
superior = covered by mucosa with papillae embedded in the body inferior = smooth mucous membrane
66
function of the extrinsic muscles of the tongue
mobilize the tongue
67
what are the extrinsic muscles of the tongue and their corresponding functions
palatoglossus = up and down styloglossus = back and forth hyoglossus = back and flat genioglossus = pull tongue forward
68
what is the function of intrinsic muscles of the tongue
change shapes curve/narrow
69
what are the intrinsic tongue muscles
superior longitudinal vertical transversus inferior longitudinal
70
what is the innervation of the tongue muscles
palatoglossus = CN X all other muscles = CN XII
71
where is the hypoglossal nerve located in the brain
between the medullary pyramid and the inferior olive
72
the hypoglossal nerve acts as a shuttle for C1 to what muscles
geniohyoid, thyrohyoid, and superior root of ansa cervicalis
73
tongue muscles antagonize each other. If the Left side is weak, which way will the tongue muscle deviate
left towards the affected side
74
where is the parotid gland? where does its gland pierce?
mandibular angle where CN VII branches through its duct pierces the buccinator muscle
75
what is the parasympathetic motor innervation to the parotid gland
otic ganglion | CNIX, lesser petrosal nerve, foramen ovale, or spinosum
76
what is the parasympathetic innervation of the submandibular and sublingual glands
submandibular ganglion (CN VII, chorda tympani)
77
which muscles can be regulated differently than other facial expression muscles
frontalis and occipitals
78
what happens of there is an upper motor injury to the CN VII
damage is above the lower motor nuclei in one hemisphere contralateral facial paralysis scalp is paired
79
what happens if there is a lower motor injury
damage is in and below the lower motor nuclei ipsilateral scalp and facial paralysis
80
where is the lower motor nuclei of the CN VII located
in junction o pontine/medulla tegmentum ``` dorsal = scalp ventral = face ```
81
describe the primary motor cortex neurons
synapse with contralateral Dorsal and ventral nuclei synapse with ipsilateral dorsal nuclei
82
describe signs after a stroke (UMN) and Bell's palsy (LMN)
UMN = can elevate eyebrows LMN = can't elevate eyebrow both = facial drop; difficult to close eyes and mouth -drool/tears on affected side
83
what is crocodile tears syndrome
"crying" during eating with visceral motor spared
84
can CN VII LMN/UMN injury patients smile?
all LMN patients = no UMN injury with limbic lobe spared = yes when hear humor, no when asked to smile

Clinical Anatomy: DPT 701 (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions