H&N - muscles Flashcards Preview

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Flashcards in H&N - muscles Deck (93)
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1
Q

What is the innervation of this muscle?

A

Sternohyoid

C1-C3 through ansa cervicalis

2
Q

What is the innervation of this muscle?

A

Omohyoid

C1-C3 through ansa cervicalis

3
Q

What is the action of this muscle?

A

Stylohyoid

elevates and retracts hyoid bone

4
Q

What is the action of this muscle?

A

Hyoglossus

Depresses tongue

5
Q

What is this muscle?

A

Stylohyoid

6
Q

What muscle is this?

A

Styloglossus

7
Q

What is the innervation of this muscle?

A

Geniohyoid

Hypoglossal nerve - CN XII

8
Q

What is the action of this muscle?

A

Medial pterygoid

Protracts mandible (with lateral)

Side to side movements

9
Q

What muscle is this?

A

Mylohyoid

10
Q

What muscle is this?

A

Lateral rectus

11
Q

What is the action of this muscle?

A

Mylohyoid

Elevates hyoid

12
Q

What is the action of this muscle?

A

Posterior belly of digastric

Opens mouth + depresses mandible

13
Q

What is the action of this muscle?

A

Medial rectus

Adduction of eye

14
Q

What is the innervation of this muscle?

A

Inferior oblique

CN III - oculomotor

15
Q

What is the innervation of this muscle?

A

Temporalis

Mandibular branch of trigeminal nerve - CN V3

16
Q

What muscle is this?

A

Omohyoid

17
Q

What is the action of this muscle?

A

Buccinator

Compresses cheek

18
Q

What is the innervation of this muscle?

A

Levator palpebrae superior

CN III - oculomotor

19
Q

What muscle is this?

A

Orbicularis oculi

20
Q

What muscle is this?

A

Stylohyoid

21
Q

What is the innervation of this muscle?

A

Masseter

Mandibular branch of trigeminal nerve - CN V3

22
Q

What is the innervation of this muscle?

A

Orbicularis oris

Facial nerve CN VII

23
Q

What is the innervation of this muscle?

A

Anterior belly of occipitofrontalis

Facial nerve - CNVII

24
Q

What muscle is this?

A

Geniohyoid

25
Q

What muscle is this?

A

Levator palpebrae superior

26
Q

What is the innervation of this muscle?

A

Thyrohyoid

C1 through hypoglossal nerve

27
Q

What is the innervation of this muscle?

A

Mylohyoid

Mandibular branch of trigeminal - CNV3

28
Q

What muscle is this?

A

Platysma

29
Q

What is the action of this muscle?

A

Geniohyoid

Elevates hyoid bone (Plus pulls anteriorly)

30
Q

What is the action of this muscle?

A

Anterior belly of frontalis

Raises eyebrows

31
Q

What is the action of this muscle?

A

Inferior rectus

Moves eye

Depresses

Adducts

Extorts

32
Q

What muscle is this?

A

Inferior oblique

33
Q

What is the innervation of this muscle?

A

Anterior belly of digastric

Mandibular branch of trigeminal CN V3

34
Q

What muscle is this?

A

Inferior rectus

35
Q

What is the action of this muscle?

A

Levator palpebrae superior

Elevates upper eyelid

36
Q

What muscle is this?

A

Temporalis

37
Q

What is the innervation of this muscle?

A

Platysma

Facial nerve - CN VII

38
Q

What is the innervation of this muscle?

A

Buccinator

Facial nerve - CN VII

39
Q

What is the action of this muscle?

A

Sternothyroid

Pulls larynx and hyoid bone inferiorly

40
Q

What is the innervation of this muscle?

A

Superior rectus

moves eye:

Elevates

Adducts

Intorsion

41
Q

What is the action of this muscle?

A

Orbicularis oris

Closes mouth

42
Q

What is the action of this muscle?

A

Styloglossus

Retracts and elevates tongue

43
Q

What is the innervation of this muscle?

A

Sternothyroid

C1-C3 through ansa cervicalis

44
Q

What muscle is this?

A

Masseter

45
Q

What is the innervation of this muscle?

A

Superior rectus

CN III - oculomotor nerve

46
Q

What is the actionof this muscle?

A

Posterior belly of occipitofrontalis muscle

Pulls scalp posteriorly

47
Q

What muscle is this?

A

Lateral pterygoid

48
Q

What muscle is this?

A

Superior oblique

49
Q

What is the innervation of this muscle?

A

Hyoglossus

Hypoglossal nerve CN XII

50
Q

What is the action of this muscle?

A

Temporalis

Closes jaw

51
Q

What is the innervation of this muscle?

A

Stylohyoid

Facial nerve - CN VII

52
Q

What is the innervation of this muscle?

A

Orbicularis oculi

Facial nerve - CN VII

53
Q

What muscle is this?

A

Anterior belly of frontalis

54
Q

What is the innervation of this muscle?

A

Lateral rectus

Abducens nerve - CN VI

55
Q

What muscle is this?

A

Frontalis anterior belly

56
Q

What muscle is this?

A

Hyoglossus

57
Q

What muscle is this?

A

Sternothyroid

58
Q

What muscle is this?

A

Posterior belly of digastric

59
Q

What is the action of this muscle?

A

Orbicularis oculi

Closes eye

60
Q

What is the innervation of this muscle?

A

Lateral pterygoid

mandibular branch Trigeminal nerve - CN V3

61
Q

What is the innervation of this muscle?

A

Medial pterygoid

Mandibular branch of trigeminal - CN V3

62
Q

What is the action of this muscle?

A

Superior oblique

Moves eye:

Depression

Abduction

Intorsion

63
Q

What muscle is this?

A

Genioglossus

64
Q

What muscle is this?

A

Medial rectus

65
Q

What is the innervation of this muscle?

A

Posterior belly of digastric

Facial nerve - CN VII

66
Q

What is the innervation of this muscle?

A

Inferior rectus

CN III - oculomotor

67
Q

What is the action of this muscle?

A

Platysma

Tenses skin of neck

68
Q

What is the action of this muscle?

A

Masseter

Prime muscle of jaw closure

69
Q

What is the action of this muscle?

A

Inferior oblique

Moves eye:

Extorsion

Elevation

Abduction

70
Q

What muscle is this?

A

Trapezius

71
Q

What muscle is this?

A

Platysma

72
Q

What muscle is this?

A

Thyrohyoid

73
Q

What muscle is this?

A

Medial pterygoid

74
Q

What is the action of this muscle?

A

Lateral pterygoid

Side to side movements

Protraction of mandible

75
Q

What muscle is this?

A

Posterior belly of frontalis muscle

76
Q

What is the innervation of this muscle?

A

Posterior belly of occipitofrontalis muscle

Facial nerve - CN VII

77
Q

What is the action of this muscle?

A

Omohyoid

Depresses and retracts hyoid bone

78
Q

What muscle is this?

A

Orbicularis oris

79
Q

What muscle is this?

A

Superior rectus

80
Q

What muscle is this?

A

Geniohyoid

81
Q

What is the innervation of this muscle?

A

Medial rectus

CN III - oculomotor

82
Q

What is the action of this muscle?

A

Thyrohyoid

Depresses hyoid

(Elevates larynx if hyoid fixed)

83
Q

What is the innervation of this muscle?

A

Superior oblique

Trochlear nerve - CN IV

84
Q

What is the action of this muscle?

A

Anterior belly of digastric

Depresses mandible

85
Q

What muscle is this?

A

Buccinator

86
Q

What is the action of this muscle?

A

Genioglossus

Protracts tongue

87
Q

What muscle is this?

A

Sternohyoid

88
Q

What is the action of this muscle?

A

Lateral rectus

Abducts eye

89
Q

What is the innervation of this muscle?

A

Genioglossus

Hypoglossal nerve - CN XII

90
Q

What muscle is this?

A

Anterior belly of digastric

91
Q

What is the action of this muscle?

A

Sternohyoid

Depresses larynx + hyoid bone

92
Q

What muscle is this?

A

SCM

93
Q

What is the innervation of this muscle?

A

Styloglossus

Hypoglossal nerve - CN XII