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Anatomy 1 - Upper Extremity > Superficial Back > Flashcards

Superficial Back Flashcards

1
Q

What bony landmark does the latissmus dorsi attach to distally?

A

Floor of the intertubercular sulcus of the humerus

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2
Q

What two bony landmarks does the levator scapulae attach to?

A

1) superior angle of the scapula
2) superomedial border of the scapula

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3
Q

What four bony landmarks does the pectoralis major attach to?

A

1) manubrium of the sternum
2) body of the sternum
3) anterior border of the clavicle
4) lateral lip of the intertubercular sulcus of the humerus

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4
Q

What bony landmark does the pectoralis minor attach to?

A

1) coracoid process of the scapula

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5
Q

What bony landmark does the rhomboid attach to?

A

1) medial border of the scapula

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6
Q

Does the serratus anterior attach to any bony landmarks in the upper extremity?

A

no

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7
Q

What bony landmark does the subclavius attach to?

A

1) inferior surface of the clavicle

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8
Q

What two bony landmarks does the trapezius attach to?

A

1) posterior border of the clavicle
2) crest of the spine of the scapula

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9
Q

What are the actions of the latissimus dorsi?

A

1) adduction of the humerus
2) extension of the humerus
3) medial rotation of the humerus

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10
Q

What are the actions of the levator scapulae?

A

1) elevation of the scapula
2) downward rotation of the scapula

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11
Q

What are the actions of the pectoralis major?

A

1) Adduction of the humerus
2) Flexion of the humerus
3) Medial rotation of the humerus

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12
Q

What action does the sternocostal portion of the pectoralis major assist with?

A

extension of a flexed arm

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13
Q

What are the actions of the pectoralis minor?

A

1) anterior tilt of scapula
2) assists with shoulder depression
3) assists with forced expiration

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14
Q

What are the actions of the rhomboids?

A

1) scapular retraction
2) scapular elevation
3) scapular downward rotation

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15
Q

What are the actions of serratus anterior?

A

1) scapular protraction
2) upward rotation of the scapula

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16
Q

What are the actions of subclavius?

A

1) clavicle depression
2) clavicle stabilization

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17
Q

What are the actions of trapezius (and their respective portion of the trap for the action)?

A

1) scapular elevation (upper trap)
2) scapular depression (lower trap)
3) scapular retraction (middle trap
4) scapular upward rotation (upper and lower trap)

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18
Q

What actions does the upper trap do?

A

1) scapular elevation
2) scapular upward rotation

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19
Q

What actions does the lower trap do?

A

1) scapular depression
2) scapular upward rotation

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20
Q

What actions does the middle trap do?

A

1) scapular retraction

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21
Q

What are the characteristics of the extrinsic back muscles?

A

1) axioappendicular (connect the trunk to the limbs)
2) Move the upper limbs
3) aid in respiration and proprioception of the ribs
4) mostly innervated by the ventral/anterior rami of the spinal cord

22
Q

What are the layers of the extrinsic back muscles?

A

1) superficial
2) intermediate

23
Q

What do the superficial extrinsic back muscles do?

A

movement of the upper limbs

24
Q

What do the intermediate extrinsic back muscles do?

A

respiration and proprioception of the ribs

25
Q

What are the characteristics of the intrinsic back muscles?

A

1) do vertebral column stabilization and movement
2) innervated by dorsal/posterior rami of the spinal cord

26
Q

What are the superficial extrinsic back muscles?

A

1) Trapezius
2) Levator Scapulae
3) Rhomboids
4) Latissimus Dorsi

27
Q

What are the intermediate extrinsic back muscles?

A

1) Serratus posterior superior
2) Serratus posterior inferior

28
Q

What are the 3 groups of intrinsic back muscles?

A

1) Splenius muscles
2) Erector Spinae
3) Transversospinales

29
Q

What are the splenius muscles?

A

1) splenius capitis
2) splenius cervicis

30
Q

Where does splenius capitis attach (general area)?

A

occipital bone

31
Q

here does the splenius cervicis attach (general area)?

A

neck

32
Q

What are the muscles of the erector spinae?

A

1) spinalis
2) longissimus
3) ilicostalis

33
Q

What are the muscles of the transersospinales?

A

1) semispinalis
2) multifidus
3) rotatores

34
Q

What muscle does the thoracodorsal nerve innervate?

A

1) latissimus dorsi

35
Q

What muscles do the dorsal scapular nerve innervate?

A

1) Levator scapulae
2) Rhomboids

36
Q

What muscles do the lateral pectoral nerve innervate?

A

1) pectoralis major
2) pectoralis minor

37
Q

What muscles do the medial pectoral nerve innervate?

A

1) pectoralis major
2) pectoralis minor

38
Q

What muscle does the long thoracic nerve innervate?

A

1) serratus anterior

39
Q

What superficial back muscle does the accessory nerve (CN 11) innervate?

A

Trapezius

40
Q

What segments of the spinal cord innervate latissimus dorsi?

A

C6-C8

41
Q

What segments of the spinal cord innervate levator scapulae?

A

C4-C5

42
Q

What segments of the spinal cord have direct branches to the levator scapulae for sensory innervation?

A

C3-C4

43
Q

What segments of the spinal cord innervate the clavicular head of pectoralis major?

A

C5-C7

44
Q

What segments of the spinal cord innervate the sternocostal head of pectoralis major?

A

C8-T1

45
Q

What segments of the spinal cord innervate pectoralis minor?

A

C5-T1

46
Q

What segments of the spinal cord innervate the rhomboids?

A

C4-C5

47
Q

What segments of the spinal cord have direct branches to the rhomboids for sensory?

A

C3-C4

48
Q

What segments of the spinal cord innervate serratus anterior?

A

C5-C7

49
Q

What segments of the spinal cord innervate the subclavius?

A

C5-C6

50
Q

What segments of the spinal cord have branches for sensory innervation of trapezius?

A

C3-C4

51
Q

What muscles attach on the anterior border of the clavicle?

A

1) Pectoralis major
2) Deltoid

Anatomy 1 - Upper Extremity (5 decks)

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