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Anatomy Lab > Superficial Back > Flashcards

Superficial Back Flashcards

1
Q

Upper trapezius origin

A

External occipital protuberance, Ligamentum nuchae, spinal processes of C7 and all thoracic vertebrae

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2
Q

Upper trapezius insertion

A

Spine of scapula; acromion; lateral third of clavicle

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3
Q

Upper trapezius action

A

Elevation of scapula (shrug)

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4
Q

Upper trapezius innervation

A

Spinal accessory nerve (CNXI)

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5
Q

Upper trapezius blood supply

A

Transverse cervical artery, dorsal perforating branches of posterior intercostal arteries

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6
Q

Middle trapezius origin

A

External occipital protuberance; Ligamentum nuchae; spinous process of C7 T1-T12

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7
Q

Middle trapezius insertion

A

Spine of scapula; acromion; lateral third of clavicle

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8
Q

Middle trapezius action

A

Retraction of scapula

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9
Q

Middle trapezius innervation

A

Spinal accessory nerve (CNXI)

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10
Q

Middle trapezius blood supply

A

Transverse cervical artery, dorsal perforating branches of posterior intercostal arteries

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11
Q

Lower trapezius origin

A

External occipital protuberance; Ligamentum nuchae; spinous process of C7 T1-T12

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12
Q

Lower trapezius insertion

A

Spine of scapula; acromion; lateral third of clavicle

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13
Q

Lower trapezius action

A

Depression of scapula

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14
Q

Lower trapezius innervation

A

Spinal accessory nerve (CNXI)

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15
Q

Lower trapezius blood supply

A

Transverse cervical artery, dorsal perforating branches of posterior intercostal arteries

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16
Q

Rhomboid major origin

A

Spinous process T2-T5

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17
Q

Rhomboid major insertion

A

Medial border of scapula below rhomboid minor

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18
Q

Rhomboid major action

A

Elevation & retraction of scapula

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19
Q

Rhomboid major innervation

A

Dorsal scapular nerve

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20
Q

Rhomboid major blood supply

A

Dorsal scapular artery

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21
Q

Rhomboid minor origin

A

Lower part of Ligamentum nuchae; spinous process of C7 and T1

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22
Q

Rhomboid minor insertion

A

Medial lip of scapular at base of spine

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23
Q

Rhomboid minor action

A

Elevation and retraction of scapula

24
Q

Rhomboid minor innervation

A

Dorsal scapular nerve

25
Q

Rhomboid minor blood supply

A

Dorsal scapular artery

26
Q

Levator scapulae origin

A

Transverse processes of C1-C4

27
Q

Levator scapulae insertion

A

Superior angle and upper part of medial border of scapula

28
Q

Levator scapulae action

A

Elevation of scapula, rotation of glenoid cavity upward

29
Q

Levator scapulae innervation

A

Dorsal scapular nerve

30
Q

Levator scapulae blood supply

A

Dorsal scapular artery

31
Q

Latissimus dorsi orgin

A

Spinous process of T6-T12 and sacral vertebrae; posterior part of iliac crest

32
Q

Latissimus dorsi insertion

A

Medial lip (crest of lesser tubercle) and floor at intertubercular groove of humerus

33
Q

Latissimus dorsi action

A

Extension, adduction, medial rotation of arm

34
Q

Latissimus dorsi innervation

A

Thoraco-dorsal nerve

35
Q

Latissimus dorsi blood supply

A

Thoracodorsal artery

36
Q

Pectoralis major clavicular head origin

A

Medial two thirds of clavicle

37
Q

Pectoralis major sternal head origin

A

Sternum & costal cartilage 1-6

38
Q

Pectoralis major clavicular & sternal head insertion

A

Lateral lip of intertubercular groove of humerus

39
Q

Pectoralis major clavicular head action

A

Adduction and medial rotation & flexion of arm

40
Q

Pectoralis major sternal head action

A

Adduction and medial rotation of arm

41
Q

Pectoralis major clavicular & sternal head innervation

A

Medial and lateral pectoral nerves

42
Q

Pectoralis major clavicular & sternal head blood supply

A

Pectoral branch of thoracoacromial artery

43
Q

Pectoralis minor origin

A

Ribs 3-5

44
Q

Pectoralis minor insertion

A

Corocoid process

45
Q

Pectoralis minor action

A

Depression of shoulder; downward rotation of scapula

46
Q

Pectoralis minor innervation

A

Medial pectoral nerve

47
Q

Pectoralis minor blood supply

A

Pectoral branch of Thoraco-acromion and intercostal lateral thoracic arteries

48
Q

Serratus anterior origin

A

Ribs 1-8 on anterolateral thoracic wall

49
Q

Serratus anterior insertion

A

Medial border of scapula; inferior angle

50
Q

Serratus anterior action

A

Protraction of the scapula; holds medial border against thoracic wall

51
Q

Serratus anterior innervation

A

Long thoracic nerve

52
Q

Serratus anterior blood supply

A

Lateral thoracic artery

53
Q

Subclavius origin

A

1st rib

54
Q

Subclavius insertion

A

Inferior surface of clavicle

55
Q

Subclavius action

A

Stabilizes Sternoclavicular joint

56
Q

Subclavius innervation

A

Nerve to Subclavius

57
Q

Subclavius blood supply

A

Thoracoacromial & suprascapular arteries

Anatomy Lab (11 decks)

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