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HN204 Midterm 1 > OIA of Head and Neck Muscles > Flashcards

OIA of Head and Neck Muscles Flashcards

1
Q

origin of masseter

A
  • zygomatic arch
  • zygomatic bone
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2
Q

insertion of masseter

A
  • angle and ramus of mandible
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3
Q

origin of temporalis

A
  • temporal fossa
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4
Q

insertion of temporalis

A
  • coronoid process of mandible (via a tendon deep to zygomatic arch)
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5
Q

what muscles elevate the mandible?

A

masseter and temporalis

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6
Q

origin of medial pterygoid

A
  • medial surface of lateral pterygoid plate of sphenoid bone
  • maxilla
  • palatine bone
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7
Q

insertion of medial pterygoid

A
  • medial surface of mandible (near angle)
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8
Q

origin of lateral pterygoid

A
  • greater wing and lateral pterygoid plate of sphenoid bone
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9
Q

insertion of lateral pterygoid

A
  • condylar process of mandible
  • capsule of temporomandibular joint
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10
Q

origin of genioglossus

A
  • internal surface of mandible near symphysis
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11
Q

insertion of genioglossus

A
  • inferior aspect of the tongue
  • body of the hyoid bone
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12
Q

origin of hyoglossus

A
  • body of hyoid bone
  • greater horn of hyoid bone
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13
Q

insertion of hyoglossus

A
  • inferolateral tongue
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14
Q

origin of styloglossus

A
  • styloid process of temporal bone
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15
Q

insertion of syloglossus

A
  • lateral inferior aspect of tongue
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16
Q

origin of corrugator supercilli

A
  • arch of frontal bone above nasal bone
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17
Q

insertion of corrugator supercilli

A
  • skin of eyebrow
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18
Q

origin of orbicularis oculi

A
  • frontal bone
  • maxillary bone
  • ligaments around orbit
19
Q

insertion of orbicularis oculi

A
  • tissue of eyelid
20
Q

origin of zygomaticus

A
  • zygomatic bone
21
Q

insertion of zygomaticus

A
  • skin and muscle at corner of mouth
22
Q

origin of orbicularis oris

A
  • indirectly from maxilla and mandible
  • blended with facial muscles at lips
23
Q

insertion of orbicularis oris

A
  • muscles and skin at angles of mouth
24
Q

origin of mentalis

A
  • mandible below incisors
25
Q

insertion of mentalis

A
  • skin of chin
26
Q

origin of platysma

A
  • fascia of chest (over pec and deltoid)
27
Q

insertion of platysma

A
  • lower margin of mandible
  • skin and muscle at corner of mouth
28
Q

origin of risorius

A
  • lateral fascia of masseter muscle
29
Q

insertion of risorius

A
  • skin at angles of mouth
30
Q

origin of levator labii superioris

A
  • zygomatic bone
  • infraorbital margin of maxilla
31
Q

insertion of levator labii superioris

A
  • skin and muscle of upper lip
32
Q

origin of depressor labii inferioris

A
  • body of mandible lateral to its midline
33
Q

insertion of depressor labii inferioris

A
  • skin and muscle of lower lip
34
Q

origin of depressor anguli oris

A
  • body of mandible below incisors
35
Q

insertion of depressor anguli oris

A
  • skin and muscle at angle of mouth (below zygomaticus insertion)
36
Q

origin of buccinator

A
  • molar region of maxilla and mandible
37
Q

insertion of buccinator

A
  • orbicularis oris
38
Q

origin of splenius

A
  • ligamentum nuchae
  • spinous processes of C7- T6
39
Q

insertion of splenius

A
  • mastoid process of temporal and occipital bone
  • transverse processes C2-C4
40
Q

origin of sternocleidomastoid

A
  • manubrium of sternum and medial portion of clavicle
41
Q

insertion of sternocleidomastoid

A
  • mastoid process of temporal bone
  • superior nuchal line of occipital bone
42
Q

origin occipitofrontalis (epicranius)

A

Frontal belly (frontalis) = skin of eyebrow, muscles of forehead
Occipital belly (occipitalis) = lateral 2/3 of superior nuchal line

43
Q

insertion of occipitofrontalis (epicranius)

A

epicranial aponeurosis

HN204 Midterm 1 (17 decks)

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