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Gross Anatomy > Block 3 - Muscles & Supporting Structures > Flashcards

Block 3 - Muscles & Supporting Structures Flashcards

1
Q

Identify
Action:
Inn:
O/I:

A

Orbicularis Oculi

A: sleep/blinking & squinting into sun

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2
Q

Identify
Action:
Inn:
O/I:

A

Levator labii superioris

A: raise upper lip & carries forward
Inn: facial n. (buccal br.)

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3
Q

Identify
Action:
Inn:
O/I:

A

Levator anguli oris

A: raise angle of mouth
Inn: facial n. (buccal br.)

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4
Q

Identify
Action:
Inn:
O/I:

A

Zygomaticus major

A: draws angle of mouth when laughing
Inn: facial n. (buccal br.)

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5
Q

Identify
Action:
Inn:
O/I:

A

Buccinator

A: compress cheeks during chewing & distend cheeks (blowing motion)
Inn: facial n. (buccal br.)

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6
Q

Identify
Action:
Inn:
O/I:

A

Depressor anguli oris

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7
Q

Identify
Action:
Inn:
O/I:

A

Orbicularis oris

A: close lip & protrude lips (speech)
Inn: facial n. (buccal br.)

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8
Q

Identify
Action:
Inn:
O/I:

A

Depressor labii inferioris

A: draws lower lip downword; frowning

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9
Q

Identify
Action:
Inn:
O/I:

A

Depressor anguli oris

A: draws angle of mouth down; sadness
Inn: facial n. (mandibular br.)

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10
Q

Identify
Action:
Inn:
O/I:

A

Platysma

A: mastication, facial expression
Inn: CN VII (facial)

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11
Q

Identify
Action:
Inn:
O/I:

A

Occipito-frontalis

A: draw scalp, raise eyebrows, wrinkle forehead (surpise)
Inn: facial n. (temporal br.)

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12
Q

Identify
Action:
Inn:
O/I:

A

Zygomaticus minor

A: elevates upper lip
Inn: facial n. (buccal br.)

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13
Q

Identify
O/I:
A:
Inn:

A

Sternocleidomastoid

A: lat flx (same), rotation (opposite), bilat flx neck, ext head
Inn: CN XI (Accessory)
1. Sternal head
2. Clavicular head

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14
Q

Identify
O/I:
A:
Inn:

A

Digastric - posterior belly

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15
Q
A

Digastric - anterior belly

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16
Q

Identify
O/I:
A:
Inn:

A

Mylohyoid

A: raise mouth (swallowing), elevate hyoid, open mouth
Inn: CN V (trigeminal) - mandibular (V3) n to myohyoid br)

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17
Q
  • highly mobile
  • attached to skeleton via stylohyoid ligament
A

Hyoid bone

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18
Q
A

Cricoid cartilage (arch)

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19
Q
A

Thyroid cartilage (laryngeal prominence)

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20
Q

Identify
O/I:
A:
Inn:

A

Digastric - anterior belly

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21
Q

Identify
O/I:
A:
Inn:

A

Sternohyoid

A: depress hyoid after swalloing
Inn: ansa cervicalis (C1-3)

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22
Q

Identify

A

Omohyoid - superior belly

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23
Q

Identify
O/I:
A:
Inn:

A

Mylohyoid

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24
Q

Identify
O/I:
A:
Inn:

A

Digastric
1. Anterior belly
Inn: CN V (mandibular (V3) n to mylohyoid br.)
2. Posterior belly
Inn: CN VII (facial n.)

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25
Q

Identify
O/I:
A:
Inn:

A

Stylohyoid

A: elevate, retract, flx hyoid
Inn: CN VII (facial)

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26
Q

Identify
O/I:
A:
Inn:

A

Sternothyroid

A: depress hyoid & laryns
Inn: ansa cervicalis (C1-3)

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27
Q

Identify
O/I:
A:
Inn:

A

Thyrohyoid

A: depress hyoid, elevate larynx
Inn: C1 spinal n via hypoglossal n

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28
Q

Identify

A

Omohyoid - Inferior belly

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29
Q

Identify
O/I:
A:
Inn:

A

Omohyoid

A: depress/stabilize hyoid
Inn: ansa cervicalis (C1-3)

  1. Superior belly
  2. Inferior belly
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30
Q

Identify
O/I:
A:
Inn:

A

Anterior scalene

A: elevate 1st rib
Inn: ventral rami of 4-6 cervical spinal nn

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31
Q

Identify
O/I:
A:
Inn:

A

Middle Scalene

A: elevate 1st rib
Inn: ventral rami of 3-8 cervical spinal nn

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32
Q

Identify
O/I:
A:
Inn:

A

Splenius capitis

O/I:
A: rot/lat bend of head & bilat ext head
Inn: dorsal rami of middle cervical spinal n.

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33
Q

Identify
O/I:
A:
Inn:

A

Levator scapulae

O/I:
A: elevate/rot scap; tilt glenoid inf
Inn: dorsal scapular n. (C5)

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34
Q

Identify
O/I:
A:
Inn:

A

Splenius cervicis

O/I:
A: rot/lat bend of head & bilat ext head
Inn: dorsal rami of lower cervical spinal n.

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35
Q

Identify
O/I:
A:
Inn:

A

Longissimus capitis

dorsal rami of spinal n.

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36
Q

Identify
O/I:
A:
Inn:

A

Semispinalis capitis

O/I:
A: bilat ex spine, head posture
Inn: dorsal rami of spinal n.

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37
Q

Identify - Deep to semispinalis capitis
O/I:
A:
Inn:

A

Semispinalis cervicis

bilat ex spine, head posture
dorsal rami of spinal n.

38
Q

Identify
O/I:
A:
Inn:

A

Rectus capitis posterior major

A: ext & rot head side to side
Inn: dorsal ramus of C1 (suboccipital n.)

39
Q

Identify
O/I:
A:
Inn:

A

Rectus capitis posterior minor

A: ext head
Inn: dorsal ramus of C1 (suboccipital n.)

40
Q

Identify
O/I:
A:
Inn:

A

Rectus capitis posterior major

dorsal ramus of C1 (suboccipital n.)

41
Q
A

Atlas (posterior arch)

42
Q

Identify
O/I:
A:
Inn:

A

Rectus capitis posterior minor

dorsal ramus of C1 (suboccipital n.)

43
Q
A

Atlas (posterior arch)

44
Q

Identify
O/I:
A:
Inn:

A

Masseter

A: close mouth (elevate mandible)
Inn: V3 (mandibular)

45
Q

Identify
O/I:
A:
Inn:

A

Temporalis

A: close jaw, retract mandible (post fibers)
Inn: V3 (mandibular)

46
Q

Identify
O/I:
A:
Inn:

A

Lateral pterygoid

A: open mouth, grind teeth
Inn: V3 (mandibular)

47
Q

Identify & Function

A

Cerebrum

48
Q

Identify & Function

A

cerebellum

49
Q

Identify & Function

A

Medulla

50
Q

Identify & Function

A

Pons

51
Q

Identify & Function

A

Dura Mater

52
Q

Identify & Function

superficial to vessels

A

Arachnoid mater

53
Q

Identify & Function

A

Falx cerebri

54
Q

Identify & Function

A

Brain stem

55
Q

Identify & Function

A

Temporal lobe

56
Q

Identify & Function

A

Parietal lobe

57
Q

Identify & Function

A

Frontal lobe

58
Q

Identify & Function

A

Levator palpebrae superioris

59
Q

Identify & Function

A

Superior oblique

60
Q
A

Lateral rectus

61
Q
A

Superior rectus

62
Q
A

Levator palpebrae superioris

63
Q
A

Superior rectus

64
Q
A

Medial rectus

65
Q
A

Lateral rectus

66
Q
A

Medial rectus

67
Q
A

Inferior rectus

68
Q
A

Inferior oblique

69
Q
A

Lateral rectus

70
Q
A

Superior tarsal plate

71
Q
A

Medial palpebral ligament

72
Q
A

Lacrimal sac

73
Q
A

Inferior oblique

74
Q
A

Geniohyoid

A: elevate/draw hyoid ant, retract/depress mandible
Inn: C1 spinal n via hypoglossal n

75
Q
A

Anterior longitudinal Ligament

76
Q
A

Cruciate Ligament

77
Q
A

Tectoral membrane

78
Q

Identify
O/I:
A:
Inn:

A

Trapezius
O/I:
A:
Inn: Spinal Accessory N. (CN XI) - C3-4 NR

79
Q

Identify
O/I:
A:
Inn:

A

Latissimus Dorsi

O/I:
A: ext, add, IR humerus
Inn: thoracodorsal n. (C6-8)

80
Q

Identify
O/I:
A:
Inn:

A

Spinalis

dorsal rami of spinal n.

81
Q

Identify
O/I:
A:
Inn:

A

Longissimus

dorsal rami of spinal n.

82
Q

Identify
O/I:
A:
Inn:

A

Iliocostalis

O/I:
A:
Inn: dorsal rami of spinal n.

83
Q

Identify
O/I:
A:
Inn:

A

Long rotators

bilat ext, rot to opposit side
dorsal rami of spinal n.

84
Q

Identify
O/I:
A:
Inn:

A

Short rotators

bilat ext, rot to opposit side
dorsal rami of spinal n.

85
Q

Identify
O/I:
A:
Inn:

A

Rhomboid major

O/I:
A: retract/stabilize/IR scapula
Inn: dorsal scapular n. (C5)

86
Q

Identify
O/I:
A:
Inn:

A

Rhomboid minor

O/I:
A: retract/stabilize/IR scapula
Inn: dorsal scapular n. (C5)

87
Q

Identify
O/I:
A:
Inn:

A

Semispinalis Thoracis
bilat ex spine, head posture
dorsal rami of spinal n.

88
Q

Identify
O/I:
A:
Inn:

A

Multifidus
bilat ext spine; lat flx; unilat rot vert bodies
dorsal rami of spinal n.

89
Q

Identify
O/I:
A:
Inn:

A

Obliquus Capitis Superior

ext & side bend of head
dorsal ramus of C1 (suboccipital n.)

90
Q

Identify
O/I:
A:
Inn:

A

Obliquus Capitis Inferior

A: rot atlas (side to side)
Inn: dorsal ramus of C1 (suboccipital n.)

91
Q

Identify yellow arrow (attaches to the dura mater & splits the n. into ventral & dorsal roots)

A

Denticulate ligament

Gross Anatomy (15 decks)

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