Dermatomes, Myotomes, & Reflexes Flashcards Preview

PTRS 703 Tests and Measures > Dermatomes, Myotomes, & Reflexes > Flashcards

Flashcards in Dermatomes, Myotomes, & Reflexes Deck (83)
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1
Q

Dermatome: L1

A

Groin

2
Q

Dermatome: L2

A

Anterior proximal thigh

3
Q

Dermatome: L3

A

Medial aspect of distal thigh and knee

4
Q

Dermatome: L4

A

Lat aspect of knee and Medial distal leg

5
Q

Dermatome: L5

A

Dorsum of foot

6
Q

Dermatome: S1

A

Lateral foot

7
Q

Dermatome: S2

A

Medial aspect of heel

8
Q

Myotome: L2

A

Hip Flexion (Psoas)

9
Q

Myotome: L3

A

Knee Extension (Quads) – slightly bent

10
Q

Myotome: L4

A

DF/ Inv (Anterior Tibialis) – pull down and out; stab laterally

11
Q

Myotome: L5

A

Toe Extension (EHL and EDL)

12
Q

Myotome: S1

A

Gastrocnemius/soleus; Eversion (Peroneals) – pull in

13
Q

Myotome: S2

A

Toe Flexion (FDL)

14
Q

Reflex: L3

A

Patellar Tendon – back of hammer

15
Q

Reflex: L4

A

(Patellar Tendon)

16
Q

Reflex: L5

A

Medial Hamstring Tendon – on semitendinosus

17
Q

Reflex: S1

A

Achilles Tendon – slight dorsiflexion

18
Q

Dermatome: Groin

A

L1

19
Q

Dermatome: Anterior proximal thigh

A

L2

20
Q

Dermatome: Medial aspect of distal thigh and knee

A

L3

21
Q

Dermatome: Lat aspect of knee and Medial distal leg

A

L4

22
Q

Dermatome: Dorsum of foot

A

L5

23
Q

Dermatome: Lateral foot

A

S1

24
Q

Dermatome: Medial aspect of heel

A

S2

25
Q

Myotome: Hip Flexion (Psoas)

A

L2

26
Q

Myotome: Knee Extension (Quads) – slightly bent

A

L3

27
Q

Myotome: DF/ Inv (Anterior Tibialis) – pull down and out; stab laterally

A

L4

28
Q

Myotome: Toe Extension (EHL and EDL)

A

L5

29
Q

Myotome: Gastrocnemius/soleus; Eversion (Peroneals) – pull in

A

S1

30
Q

Myotome: Toe Flexion (FDL)

A

S2

31
Q

Reflex: Patellar Tendon

A

L3/L4

32
Q

Reflex: Medial Hamstring Tendon/Semitendinosus

A

L5

33
Q

Reflex: Achilles Tendon

A

S1

34
Q

Dermatome: C2

A

Side of head

35
Q

Dermatome: C3

A

Anterior and lateral neck

36
Q

Dermatome: C4

A

Supraclavicular area/Over trap

37
Q

Dermatome: C5

A

Lateral Arm

38
Q

Dermatome: C6

A

Pad of thumb

39
Q

Dermatome: C7

A

Pad of index/middle finger

40
Q

Dermatome: C8

A

Hypothenar eminence and 5th finger

41
Q

Dermatome: T1

A

Medial forearm

42
Q

Myotome: C1

A

Rectus Capitis Anterior and lateral (flexion)

43
Q

Myotome: C2

A

Rectus Capitis Posterior (extension)

44
Q

Myotome: C3

A

Scalenes; Erector Spinae (side bend)

45
Q

Myotome: C4

A

Scapular elevation (Upper trapezius; levator scapulae)

46
Q

Myotome: C5

A

Shoulder abduction/Middle deltoid OR Elbow Flexion/Biceps

47
Q

Myotome: C6

A

Extensor Carpi Radialis/Wrist extension (Pressure down and out)

48
Q

Myotome: C7

A

Triceps (elbow extension)

49
Q

Myotome: C8

A

Thumb Extension (EPL)

50
Q

Myotome: T1

A

Finger adduction (PAD)

51
Q

Reflex: C4

A

Levator Scapulae

52
Q

Reflex: C5

A

Deltoid

53
Q

Reflex: C6

A

Biceps

54
Q

Reflex: C7

A

Triceps

55
Q

Reflex: C8

A

Long Finger Flexors

56
Q

Dermatome: Side of head

A

C2

57
Q

Dermatome: Anterior and lateral neck

A

C3

58
Q

Dermatome: Supraclavicular area/Over trap

A

C4

59
Q

Dermatome: Lateral Arm

A

C5

60
Q

Dermatome: Pad of thumb

A

C6

61
Q

Dermatome: Pad of index/middle finger

A

C7

62
Q

Dermatome: Hypothenar eminence and 5th finger

A

C8

63
Q

Dermatome: Medial forearm

A

T1

64
Q

Myotome: Rectus Capitis Anterior and lateral (flexion)

A

C1

65
Q

Myotome: Rectus Capitis Posterior (extension)

A

C2

66
Q

Myotome: Scalenes; Erector Spinae (side bend)

A

C3

67
Q

Myotome: Scapular elevation (Upper trapezius; levator scapulae)

A

C4

68
Q

Myotome: Shoulder abduction/Middle deltoid OR Elbow Flexion/Biceps

A

C5

69
Q

Myotome: Extensor Carpi Radialis/Wrist extension (Pressure down and out)

A

C6

70
Q

Myotome: Triceps (elbow extension)

A

C7

71
Q

Myotome: Thumb Extension (EPL)

A

C8

72
Q

Myotome: Finger adduction (PAD)

A

T1

73
Q

Reflex: Levator Scapulae

A

C4

74
Q

Reflex: Deltoid

A

C5

75
Q

Reflex: Biceps

A

C6

76
Q

Reflex: Triceps

A

C7

77
Q

Reflex: Long finger flexors

A

C8

78
Q

Reflex Grading

0

1+

2+

3+

4+

A

0 = no response

1+ = low normal (present, depressed)

2+ = normal

3+ = possible abnormal (brisk)

4+ = abnormal (very brisk)

79
Q

Reflex Mechanism (5)

A
  1. Tap tendon
  2. Stretches muscle
  3. Spindle feel stretch
  4. Sensory 1a fibers send signal to spinal cord
  5. Motor neuron in spinal cord tells muscle to contract

* Simple reflex response - doesn’t travel to brain

80
Q

Abnormal response: Too much/hyper

A

Upper motor neuron lesion

81
Q

Abnormal response: Too little/hypo

A

Lower motor neuron lesion

82
Q

T/F: To determine if it is too much/little of a response is based on average response times.

A

False: key is symmetry

abnormal = asymmetric response bilaterally

normal = symmetric response bilaterally

83
Q

Dermatome Diagram

A