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Gross Anatomy Lab 1 > Superficial Back Musculature > Flashcards

Superficial Back Musculature Flashcards

1
Q

Trapezius, origin

A

occipital protuberance, ligamentum nuchae, spinous processes of C7-T12

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2
Q

Trapezius, insertion

A

upper: lateral third of clavicle
middle: spine of scapula
lower: root of spine of scapula

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3
Q

Trapezius, action

A

upper: elevation of scapula and upward rotation of scapula
middle: retraction of scapula
lower: depression of scapula and upward rotation of scapula

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4
Q

Trapezius, nerve supply

A

spinal accessory nerve

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5
Q

Trapezius, blood supply

A

transverse cervical artery

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6
Q

Rhomboid Minor, origin

A

spinous processes of C7-T1

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7
Q

Rhomboid Minor, insertion

A

root of spine of scapula

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8
Q

Rhomboid Minor, action

A

retraction of scapula and downward rotation of scapula

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9
Q

Rhomboid Minor, nerve supply

A

dorsal scapular nerve

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10
Q

Rhomboid Minor, blood supply

A

dorsal scapular artery

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11
Q

Rhomboid Major, origin

A

spinous processes of T2-T5

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12
Q

Rhomboid Major, insertion

A

vertebral border of scapula from root of spine to inferior angle

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13
Q

Rhomboid Major, action

A

retraction of scapula and downward rotation of scapula

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14
Q

Rhomboid Major, nerve supply

A

dorsal scapular nerve

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15
Q

Rhomboid Major, blood supply

A

dorsal scapular artery

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16
Q

Levator Scapulae, origin

A

transverse processes of C1-C4

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17
Q

Levator Scapulae, insertion

A

vertebral border of scapula from superior angle to root of spine

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18
Q

Levator Scapulae, action

A

elevation of scapula, downward rotation of scapula

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19
Q

Levator Scapulae, nerve supply

A

dorsal scapular nerve

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20
Q

Levator Scapulae, blood supply

A

dorsal scapular artery

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21
Q

Latissimus Dorsi, origin

A

thoracolumbar aponeurosis, spinous processes of T7-T12, iliac crest, lower ribs

22
Q

Latissimus Dorsi, insertion

A

floor of bicipital groove of humerus

23
Q

Latissimus Dorsi, action

A

extension of shoulder, internal rotation of shoulder, adduction of shoulder

24
Q

Latissimus Dorsi, nerve supply

A

thoracodorsal nerve

25
Q

Latissimus Dorsi, blood supply

A

thoracodorsal artery

26
Q

Serratus Posterior Superior, origin

A

ligamentum nuchae, spinous processes of C7-T3

27
Q

Serratus Posterior Superior, insertion

A

superior borders of ribs 2, 3, 4

28
Q

Serratus Posterior Superior, action

A

elevates ribs

29
Q

Serratus Posterior Superior, nerve supply

A

intercostal nerves T1-T4

30
Q

Serratus Posterior Superior, blood supply

A

posterior intercostal arteries

31
Q

Serratus Posterior Inferior, origin

A

spinous processes of T11-L2

32
Q

Serratus Posterior Inferior, insertion

A

inferior borders of ribs 9-12

33
Q

Serratus Posterior Inferior, action

A

depresses ribs

34
Q

Serratus Posterior Inferior, nerve supply

A

intercostal nerves T9-T12

35
Q

Serratus Posterior Inferior, blood supply

A

posterior intercostal arteries

36
Q

Iliocostalis, origin

A

posterior ribs, thoracolumbar aponeurosis, iliac crests, sacrum

37
Q

Iliocostalis, insertion

A

cervical transverse processes, posterior ribs

38
Q

Iliocostalis, action

A

bilaterally- extension of vertebral column

unilaterally- lateral flexion of vertebral column

39
Q

Iliocostalis, nerve supply

A

dorsal rami of spinal nerves

40
Q

Iliocostalis, blood supply

A

posterior intercostal arteries, lumbar arteries

41
Q

Longissimus, origin

A

lower cervical and thoracic transverse processes, thoracolumbar aponeurosis, iliac crests, sacrum

42
Q

Longissimus, insertion

A

mastoid process, cervical and thoracic transverse processes

43
Q

Longissimus, action

A

bilaterally- extension of vertebral column

unilaterally- lateral flexion of vertebral column

44
Q

Longissimus, nerve supply

A

dorsal rami of spinal nerves

45
Q

Longissimus, blood supply

A

posterior intercostal arteries, lumbar arteries

46
Q

Spinalis, origin

A

ligamentum nuchae, cervical, thoracic, and lumbar spinous processes, sacrum, iliac crests

47
Q

Spinalis, insertion

A

occipital bone, C2-4 and most thoracic spinous processes

48
Q

Spinalis, action

A

bilaterally- extension of vertebral column

unilaterally- lateral flexion of vertebral column

49
Q

Spinalis, nerve supply

A

dorsal rami of spinal nerves

50
Q

Spinalis, blood supply

A

posterior intercostal arteries, lumbar arteries

Gross Anatomy Lab 1 (2 decks)

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