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HBS > Lecture 10 > Flashcards

Lecture 10 Flashcards

1
Q

What are the borders of the face?

A

-between eyebrow and chin

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2
Q

Which region covers the superior, lateral and posterior of the calvaria?

A

scalp

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3
Q

What are the 5 layers of the scalp?

A
  • skin
  • connective tissue
  • aponeurosis
  • loose areolar tissue
  • periosteum
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4
Q

thin tendinous sheet connects occipital and frontal bellies of occipitofrontalis muscle

A

aopneurosis

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5
Q

Which muscle moves the scalp, wrinkles the forehead, and raises the eyebrows?

A

occiptalfrontalis muscle

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6
Q

which layer of the scalp contains emissary veins?

A

loose areolar tissue

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7
Q

What are the 3 functional groups of the fascial muscles?

A
  • orbital
  • nasal
  • oral
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8
Q

What are the two muscles of the orbital group?

A
  • orbicularis oculi (superficial)

- corrugator supercilii (deep)

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9
Q

What are the functions of the orbital and palpebral of the orbicularis oculi?

A
  • orbital-forcefully close eyelid

- palpebral-gently close eyelid

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10
Q

What is the function of the corrugator supercilii?

A

draw eyebrows medially and downward

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11
Q

What are the 3 muscles of the nasal group?

A
  • nasalis (transverse and alar)
  • procerus
  • depressor septi
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12
Q

What are the function of the transverse and alar of the nasalis muscle?

A
  • transverse-compress nasal aperture

- alar-open nostril

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13
Q

What is the function of the procerus?

A

-draws medial eyebrows downward and makes transverse wrinkles over bridge of nose

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14
Q

What is the function of the depressor septi?

A

-pull nose inferiorly

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15
Q

What is the function of the obicularis oris?

A

close lips and protrudes lips

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16
Q

Which muscle compress cheeks, and pressing cheeks against teeth?

A

buccinator

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17
Q

Which muscle raise and protrudes lower lip and wrinkle skin on chin?

A

mentalis

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18
Q

What is the function of the levator labii superioris alaeque nasi (LLSAN)?

A

most medial, lift upper lip and open nostrils

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19
Q

What is the function of levator labii superioris?

A

-lift upper lip

20
Q

What are the functions of the zygomatic major and minor?

A

major-help smile, raise corner of mouth

minor-help smile

21
Q

What is the function of the levator anguli oris?

A

raise corner of mouth

22
Q

Which two muscles raise the corner of the mouth?

A

zyogmatic major and levator anguli oris

23
Q

Which muscle depresses corner of the mouth?

A

depressor anguli oris

24
Q

Which muscle depress lower lip?

A

depressor labii inferioris

25
Q

Which muscle pull mouth backward and outward?

A

risorius

26
Q

What are the main branches of the ECA?

A
  • facial artery
  • maxillary artery
  • superficial temporal artery
27
Q

What are the ligaments of the temporomandibular joint?

A
  • temporomandibular (lateral and capsular)
  • stylomandibular
  • sphenomandibular
28
Q

What are the functions of the temporomandibular joint ligaments?

A
  • prevent dislocation
  • connect mandible to cranium
  • define movement border of mandible
29
Q

What are the 4 movements of the mandible?

A
  • protrusion
  • retraction
  • elevation
  • depression
30
Q

What are the 4 muscles of mastication?

A
  • temporalis
  • masseter
  • medial pterygoid
  • lateral pterygoid
31
Q

Which mastication muscles elevate mandible?

A

temporalis, masseter, and medial pterygoid

32
Q

Which mastication muscles protrude mandible?

A

lateral pterygoid

33
Q

Which fossa is a fan shape at the temple of the head?

A

temporal fossa

34
Q

Which fossa has an irregular shape, inferior of temporal fossa, and medial to zygomatic arch?

A

infratemporal fossa

35
Q

What are the 4 contents of the temporal fossa?

A
  • temporalis muscle
  • branches of CNV
  • branches of maxillary artery
  • branches of superficial temporal artery
36
Q

What are the contents of the infratemporal fossa?

A
  • inferior part of temporalis muscle
  • sphenomandibular ligament; lateral and medial pterygoid
  • maxillary artery and its branches
  • branches of CNV, CNVII, CNIX
  • octic ganglion
37
Q

What is between the external and middle ear?

A

tympanic membrane

38
Q

What is between the middle and internal ear?

A

temporal bone

39
Q

What are the surface features of the external ear?

A
  • auricle: (majorly cartilage), helix, lobule, concha, tragus, antitragus
  • external acoustic canal
40
Q

The tympanic membrane is attached to what?

A

malleus

41
Q

Which part of the middle ear equalizes pressure?

A

pharyngotympanic tube

42
Q

What 3 bones comprise the auditory ossicles? And what is their main function?

A
  • malleus, incus, stapes

- transmit vibration

43
Q

Which part of the middle ear prevents excessive oscillation?

A

stapedius

44
Q

Where are the bony and membranous labyrinth found?

A

-internal ear

45
Q

What are the 3 organs of balance?

A
  • semicircular canals and ducts
  • utricle
  • saccule
46
Q

What comprises the organ of hearing?

A

cochlea and cochlear duct

HBS (13 decks)

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