Dermatomes & Myotomes Flashcards

1
Q

C2 dermatome

A

Occiput and the top part of the neck

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2
Q

C3 dermatome

A

Lower part of the neck to the clavicle

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3
Q

C4 dermatome

A

Area just below the clavicle

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4
Q

C5 dermatome

A

Lateral arm at and above the elbow

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5
Q

C6 dermatome

A

Forearm and the radial (thumb) side of the hand

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6
Q

C7 dermatome

A

Middle finger

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7
Q

C8 dermatome

A

Medial aspect of the hand

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8
Q

T1 dermatome

A

Medial side of the forearm

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9
Q

T3 to T12 dermatomes

A

Chest and back to the hip girdle

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10
Q

T4 dermatome

A

Nipples

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11
Q

T10 dermatome

A

Umbilicus

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12
Q

T12 dermatome

A

Just above hip girdle

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13
Q

L1 dermatome

A

Hip girdle and groin area

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14
Q

L2 and L3 dermatomes

A

Front part of the thighs

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15
Q

L4 and L5 dermatomes

A

Medial and lateral aspects of the lower leg

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16
Q

S1 dermatome

A

Heel and the middle back of the leg

17
Q

S2 dermatome

A

Back of the thighs

18
Q

S3 dermatome

A

Medial side of the buttocks

19
Q

S4 - S5 dermatomes

A

Perineal region

20
Q

S5 dermatome

A

Skin immediately at and adjacent to the anus

21
Q

C5 myotome

A

Elbow flexors/Biceps

22
Q

C6 myotome

A

Wrist extensors

23
Q

C7 myotome

A

Elbow extensors/Triceps

24
Q

C8 myotome

A

Long finger flexors

25
Q

T1 myotome

A

Small finger abductors

26
Q

L1 and L2 myotomes

A

Hip flexors (psoas)

27
Q

L3 myotome

A

Knee extensors (quadriceps)

28
Q

L4 and L5 myotomes

A

Ankle dorsiflexors (tibialis anterior)

29
Q

L5 myotome

A

Toe extensors (hallucis longus)

30
Q

S1 myotome

A

Ankle plantar flexors (gastrocnemius)

31
Q

S2 + S3 + S4 myotomes

A

Anal sphincter