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NYCC Gross Anatomy 3 > Superficial Head > Flashcards

Superficial Head Flashcards

1
Q

muscles of the scalp and face develop from…

A

mesoderm of 2nd pharyngeal arch

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2
Q

all facial muscles receive motor innervation from the ____

A

facial nerve (CN VII)

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3
Q

all facial muscles are involved in ____

A

facial expression

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4
Q

name the 5 smiling muscles

A
  • levator labii superioris
  • zygomaticus major
  • levator anguli oris
  • risoris
  • orbicularis oculi (palpebral, orbital, lacrimal)
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5
Q

name the 7 frowning muscles

A
  • depressor labii inferioris
  • depressor anguli oris
  • platysma
  • orbicularis oris
  • corrugator supercilli
  • procerus
  • mentalis
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6
Q

which muscle is known as the “Elvis muscle?”

A

nasalis

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7
Q

the nasalis muscle joins with what other muscle?

A

levator labii superioris alaque nasii

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8
Q

the masseter muscle is innervated by ____

A

CN V3

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9
Q

what is the name of the soft tissue opening for the eye?

A

palpebral fissure

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10
Q

what is the sphincter of the palpebral fissure?

A

orbicularis oculi

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11
Q

what are the dilator muscles of the palpebral fissure?

A
  • levator palpebrae superioris
  • occipitofrontalis (ant= frontalis; post= occipitalis)
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12
Q

what is the sphincter muscle of the oral fissure?

A

orbicularis oris

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13
Q

what are the dilator muscles of the oral fissure?

A

all mm of oral movement except mentalis

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14
Q

name 6 structures of the parotid region

A
  • parotid gland
  • parotid duct
  • parotid plexus of CN VII
  • retromandibular v
  • external carotid a
  • masseter m
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15
Q

name the 3 salivary glands

A
  • parotid
  • submandibular
  • sublingual
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16
Q

what are the functions of saliva?

A
  • maintain moist environment for oral mucosa
  • lubrication during chewing
  • digest and break down of starches
  • prevent tooth decay/maintenance of biofilm
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17
Q

what is the largest salivary gland?

A

parotid gland

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18
Q

where is the parotid gland located?

A

anteroinferior to external acoustic meatus

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19
Q

the parotid sheath/capsule is derived from…

A

investing layer of deep cervical fascia

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20
Q

what ligament holds the styloid process in place?

A

stylomandibular ligament

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21
Q

location of parotid duct

A
  • runs horizontally w buccal n from ant of gland
  • pierces buccinator
  • enters oral cavity opposite 2nd maxillary molar
22
Q

name the motor branches of the facial nerve

A
  • posterior auricular
  • temporal*
  • zygomatic*
  • buccal*
  • marginal mandibular*
  • cervical*
    (*parotid plexus)
23
Q

what nerve provides sensory innervation to the face?

A

trigeminal n

24
Q

name the branches of the trigeminal nerve

A
  • ophthalmic (V1)
  • maxillary (V2)
  • mandibular (V3)
25
Q

name the branches of the ophthalmic nerve

A
  • supraorbital n
  • supratrochlear n
26
Q

the infraorbital nerve branches from the ____

A

maxillary n (V2)

27
Q

name the branches of the mandibular nerve

A
  • auriculotemporal n
  • mental n
  • buccal n
28
Q

which branch of the trigeminal nerve has sensory and motor fibers?

A

mandibular (V3)

29
Q

what innervation does CN VII provide to the parotid gland

A

none

30
Q

parasympathetic innervation of parotid gland

A

auriculotemporal n (V3) from otic ganglion (CN IX)

31
Q

sympathetic innervation of parotid gland

A

external carotid plexus

32
Q

sensory innervation of parotid gland

A
  • auriculotemporal n
  • great auricular n
33
Q

arterial supply of the face

A
  • facial a
  • superficial temporal a
34
Q

the facial artery is a branch of the ____

A

external carotid a

35
Q

name the branches of the facial artery

A
  • inferior labial a
  • superior labial a
  • angular a
36
Q

the superficial temporal artery is a terminal branch of the ____

A

external carotid a

37
Q

venous supply of the face

A
  • facial v
  • retromandibular v
38
Q

the facial vein communicates with the ____ and drains into the ____

A
  • superior ophthalmic v
  • cavernous sinus
39
Q

what forms the retromandibular vein?

A

union of superficial temporal & maxillary vv

40
Q

the retromandibular vein divides into ____ and ____ divisions

A

anterior and posterior

41
Q

what forms the common facial vein?

A

anterior division of retromandibular v + facial v

42
Q

the common facial vein drains into the ____

A

internal jugular v

43
Q

what forms the external jugular vein?

A

posterior division of retromandibular v + posterior auricular v

44
Q

what venous communication in the face has potential for spread of infection?

A

facial v (no valves) + cavernous sinus = danger triangle of the face

45
Q

lymphatic drainage of the face

A

superficial ring (pericervical collar) of lymph nodes:
- submental
- submandibular
- parotid
- mastoid
- occipital

46
Q

superficial lymph vessels of the face follow ____

A

veins

47
Q

deep lymph vessels of the face follow ____

A

arteries

48
Q

all lymph from the face drain into ____ along the ____

A

deep cervical lymph nodes
internal jugular v

49
Q

drainage pathways between the facial vein and what structure can lead to spread of infection through lacerations or squeezing pustules (pimples)?

A

cavernous sinuses

50
Q

which muscle is recruited to pucker the lips or dilate the mouth?

A

orbicularis oris

NYCC Gross Anatomy 3 (27 decks)

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