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Neuro 1 > Neck Muscle Actions And Innervations > Flashcards

Neck Muscle Actions And Innervations Flashcards

1
Q

Sternocleidomastoid action

A

Laterally flex neck

Rotate face away

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2
Q

Sternocleidomastoid innervation

A

CN XI - spinal accessory n.

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3
Q

Anterior scalene action

A

Elevate 1st rib
Flex and laterally flex neck
Rotate face away

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4
Q

Anterior scalene innervation

A

C 4-6

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5
Q

Middle scalene action

A

Elevate 1st rib

Laterally flex neck

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6
Q

Middle scalene innercation

A

C3-8

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7
Q

Posterior scalene action

A

Elevate 2nd rib

Laterally flex neck

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8
Q

Posterior scalene innervation

A

C 5-7

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9
Q

Mylohyoid action

A

Elevates hyoid b, floor of mouth and tongue

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10
Q

Mylohyoid innervation

A

Mylohyoid n (from CN V3)

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11
Q

Geniohyoid action

A

Pulls hyoid b anterosuperiorly
Shortens flood of mouth
Widens pharynx

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12
Q

Geniohyoid innervation

A

C1 via hypoglossal n

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13
Q

Digastric action

A

Depresses mandible

Elevated and steadies hyoid b

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14
Q

Digastric innervation

A

Anterior belly - mylohyoid n (from CN V3)

Posterior belly - facial n (CN VII)

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15
Q

Stylohyoid action

A

Elevate and retract hyoid b

Elongate floor of mouth

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16
Q

Stylohyoid innervation

A

Facial n (CN VII)

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17
Q

Sternohyoid action

A

Depresses hyoid b

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18
Q

Sternohyoid innervation

A

Ansa cervicalis (C1-3)

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19
Q

Sternothyroid action

A

Depresses hyoid b and larynx

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20
Q

Sternothyroid innervation

A

Ansa cervicalis (C2-3)

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21
Q

Thyrohyoid action

A

Depress hyoid b and elevate larynx

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22
Q

Thyrohyoid innervation

A

C1 via hypoglossal n

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23
Q

Omohyoid action

A

Depress, retract and steady the hyoid b

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24
Q

Omohyoid innervation

A

Ansa cervicalis (C1-3)

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25
Q

Platysma action

A

Draws corners of mouth inferiorly, draws skin of the neck superiorly

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26
Q

Platysma innervation

A

Cervical branch of facial n

27
Q

Superior pharyngeal constrictor action

A

Constricts pharyngeal wall

28
Q

Superior pharyngeal constrictor m innervation

A

Pharyngeal branch of vagus n (CN X) and pharyngeal plexus

29
Q

Middle pharyngeal constrictor action

A

Constrict pharyngeal wall

30
Q

Middle pharyngeal constrictor innervation

A

Pharyngeal branch of vagus n (CN X) and pharyngeal plexus

Branches of the recurrent laryngeal n

31
Q

Inferior pharyngeal constrictor action

A

Constrict pharyngeal wall

32
Q

Inferior pharyngeal constrictor innervation

A

Pharyngeal branch of vagus n (CN X) and pharyngeal plexus

Branches of the recurrent laryngeal n

33
Q

Palatopharyngeus action

A

Elevate pharynx and larynx

34
Q

Palatopharyngeus innervation

A

Pharyngeal branch of vagus n (CN X) and pharyngeal plexus

35
Q

Salpingopharyngeus action

A

Elevate pharynx and larynx

36
Q

Salpingopharyngeus innervation

A

Pharyngeal branch of vagus n (CN X) and pharyngeal plexus

37
Q

Stylopharyngeus action

A

Elevate pharynx and larynx

38
Q

Stylopharyngeus innervation

A

Glosspharyngeal n CN IX

39
Q

Cricothyroid action

A

Stretch and tense vocal fold

40
Q

Cricothyroid innervation

A

External laryngeal n

41
Q

Posterior cricoarytenoid action

A

Abducts vocal fold

42
Q

Posterior cricoarytenoid innervation

A

Recurrent laryngeal n

43
Q

Lateral cricoarytenoid action

A

Adducts vocal fold

44
Q

Lateral cricoarytenoid innervation

A

Recurrent laryngeal n

45
Q

Transverse arytenoid action

A

Closes intercartilaginous portion of Roma glottidis

46
Q

Transverse arytenoid innervation

A

Recurrent laryngeal n

47
Q

Oblique arytenoid action

A

Closes intercartilaginous portion of rima glottidis

48
Q

Oblique arytenoid innervation

A

Recurrent laryngeal n

49
Q

Aryepiglottic action

A

Pulls arytenoid cartilages toward epiglottis

50
Q

Aryepiglottic innervation

A

Recurrent laryngeal n

51
Q

Thyroarytenoid action

A

Relax vocal fold

52
Q

Thyroarytenoid innervation

A

Recurrent laryngeal n

53
Q

Vocalis action

A

Relax posterior part of vocal fold

Tense anterior part of vocal fold

54
Q

Vocalis innervation

A

Recurrent laryngeal n

55
Q

Longus colli - inferior oblique action

A

Rotate face away

56
Q

Longus colli - superior oblique action

A

Laterally flex neck

57
Q

Longus colli - vertical action

A

Flex neck

58
Q

Longus colli innervation

A

C 2-6

59
Q

Longus capitus action

A

Flex head

60
Q

Longus capitus innervation

A

C 1-3

61
Q

Rectus capitis anterior action

A

Flex head

62
Q

Rectus capitis anterior innervation

A

C 1-2

63
Q

Rectus capitis lateralis action

A

Laterally flex head

64
Q

Rectus capitis lateralis innervation

A

C 1-2

Neuro 1 (3 decks)

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