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MSK Test 1 Sergiu > back myology > Flashcards

back myology Flashcards

1
Q

Trapezius M:
Insertion, action, and innervation
Blood supply

A
  1. Clavicle, Acromion and Scapular Spine
  2. Action: Extend the neck, laterally flex the neck, and rotate the face away when working unilaterally.
  3. Innervation: CN11 and Sensory: C3, C4
  4. Transverse cervical artery
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2
Q

Latissimus Dorsi M.
Location, action, innervation
Blood supply

A

1.Floor of the Humeral Groove, spine, Iliac Crest.
2. Extend, ADduct, and medially rotate the humerus
Rotate the Glenoid Cavity inferiorly.
3. Thoracodorsal N. (C6-8)
4. Thoracodorsal A.

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3
Q

Location of Rhomboid Major M.

A

Spine and scapula

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4
Q

Action of Rhomboid Major M. (2)

A

Retract and Elevate scapula

Rotate the Glenoid Cavity inferiorly

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5
Q

Innervation and Blood supply Rhomboid Major M.

A

Dorsal Scapular N. (C4,5)

Dorsal Scapular A.

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6
Q

Location of Rhomboid Minor M.

A

Between Spine and medial border scapula

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7
Q

Action of Rhomboid Minor M.(2)

A

Retract and Elevate Scapula, Rotate the glenoid Cavity inferiorly.

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8
Q

Innervation and Blood supply of Rhomboid Minor M.

A

Dorsal Scapular N. (C4,5)

Dorsal Scapular A.

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9
Q

Location of Levator Scapulae M

A

Scapula and Transverse Process of C1-4

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10
Q

Action of Levator Scapulae M (3)

A

Elevate scapula, rotate the glenoid cavity inferiorly.

Extend and laterally flex the neck (when the scapula is fixed).

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11
Q

Innervation and blood supply of Levator Scapulae M

A

Dorsal Scapular N. (C3,4,5)

Dorsal Scapular A.

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12
Q

Location of Serratus Posterior Superior M.

A

Ribs and Spinous Processes.

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13
Q

Action of Serratus Posterior Superior M.

A

Elevate Ribs with forced inspiration

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14
Q

Innervation and blood supply of Serratus Posterior Superior M.

A 
Intercostal N(2-5)
Intercostal A.
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15
Q

Location of Serratus Posterior Inferior M.

A

Ribs and Spinous Processes

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16
Q

Action of Serratus Posterior Inferior M.

A

Depress Ribs with forced expiration

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17
Q

Innervation and blood supply of Serratus Posterior Inferior M.

A

Anterior Rami T9-12.

Intercostal A.

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18
Q

Location of Splenius Capitus M.

A

Temporal B, Occipital B, Spinous Process C7-T3

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19
Q

Action of Splenius Capitus M. (2)

A

Extend the neck when working bilaterally

Laterally flex the neck and rotate face toward when working unilaterally.

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20
Q

Innervation and blood supply of Splenius Capitus M.

A 
Posterior Rami (C3-5)
Muscular branches of Aorta.
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21
Q

Location of Splenius Cervicis M.

A

below Splenius Capitus M

22
Q

Action of Splenius Cervicis M. (2)

A

Extend the neck when working bilaterally.

Laterally flex the neck and rotate face toward when working unilaterally.

23
Q

Innervation and blood supply of Splenius Cervicis M.

A 
Posterior Rami (C5-7)
Occipital A. and Transverse Cervical A.
24
Q

What are the 3 main muscles of the Erector Spine Group?

What are their actions? (2)

A
  1. Iliocostalis
  2. Longissimus
  3. Spinalis
    Action: maintain erect posture and extend the vertebral column and head when working bilaterally; laterally flex the vertebral column when working unilaterally.
25
Q

Innervation of all Erector Spinae Group M.

A

Posterior Rami

26
Q

Action of Semispinalis Thoracis M.

A

Extend Spine and rotate spine away.

27
Q

Innervation of Semispinalis Thoracis M.

A

Posterior Rami

28
Q

Enumerate the muscles of Tranversospinalis Group

A
  1. Semispinalis Group
  2. Multifidus M.
  3. Rotatores Longus M.
  4. Rotatores Brevis M.
29
Q

Semispinalis Cervicis M Action

A

Extend Spine and Rotate spine away.

30
Q

Innervation of semispinalis cervicis M.

A

Posterior Rami

31
Q

Action of Semispinalis Capitis M.

A

Extend head, rotate face away.

32
Q

Innervation of Semispinalis Capitis M

A

posterior Rami

33
Q

Action of Multifidus M

A

Extend spine, rotate the spine away.

34
Q

Innervation of Multifidus M.

A

Posterior Rami

35
Q

Action of Rotatores Longus M

A

Extend spine, rotate the spine away

36
Q

Innervation of Rotatores Longus M

A

Posterior Rami

37
Q

Action of Rotatores Brevis M

A

Extend spine, rotate the spine away.

38
Q

Innervation of Rotatores Brevis M

A

Posterior Rami

39
Q

Action of Interspinalis M

A

Extend Spine

40
Q

Innervation of Interspinalis M

A

Posterior Rami

41
Q

Action of Intertransversarii M

A

Laterally Flex Spine

42
Q

Innervation of Intertransversarii M

A

Posterior/ Anterior Rami

43
Q

Action of Rectus Capitis Posterior Major M.

A

Extend head, rotate face toward

44
Q

Innervation of Rectus Capitis Posterior Major M.

A

Suboccipital N.

45
Q

Action of Rectus Capitis Posterior Minor M

A

Extend head

46
Q

Innervation of Rectus Capitis Posterior Minor M

A

Suboccipital N

47
Q

Action of Obliquus Capitis Inferior M

A

Rotate the face toward

48
Q

Innervation of Obliquus Capitis Inferior M

A

Suboccipital N

49
Q

Action of Obliquus Capitis Superior M

A

Extend and laterally flex head

50
Q

Innervation of Obliquus Capitis Superior M

A

Suboccipital N

MSK Test 1 Sergiu (6 decks)

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