Myotomes and Dermatomes Flashcards

1
Q

L1 dermatome region?

A

Groin

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2
Q

L2 dermatome region?

A

Medial thigh

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3
Q

L3 dermatome region?

A

Anteromedial thigh + superior-half of medial gastroc

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4
Q

L4 dermatome region?

A

Anterior thigh + medial foot

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5
Q

L5 dermatome region?

A

Lateral thigh + dorsal surface of foot + plantar surface of foot (middle 3 toes)

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6
Q

S1 dermatome region?

A

Posterolateral thigh + lateral foot

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7
Q

S2 dermatome region?

A

Posteromedial thigh

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8
Q

L2 myotome?

A

Hip flexion

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9
Q

S2 myotome?

A

Knee flexion

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10
Q

L5 myotome?

A

Big toe extension

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11
Q

L3 myotome?

A

Knee extension

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12
Q

L4 myotome?

A

Foot dorsiflexion

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13
Q

S1 myotome?

A

Foot plantarflexion, foot eversion, or big toe flexion

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14
Q

L3/L4 deep tendon reflex?

A

Patellar tendon

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15
Q

L5/S1 deep tendon reflex?

A

Achilles tendon

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16
Q

C1/C2 myotome?

A

Neck flexion

17
Q

C3 myotome?

A

Neck lateral flexion

18
Q

C4 myotome?

A

Scapulae/Shoulder girdle elevation

19
Q

C5 myotome?

A

Arm/Shoulder joint abduction

20
Q

C6 myotome?

A

Elbow flexion or wrist extension

21
Q

C7 myotome?

A

Elbow extension or wrist flexion

22
Q

C8 myotome?

A

Thumb extension or ulnar deviation

23
Q

T1 myotome?

A

Finger intrinsics (abduction and/or adduction…?)

24
Q

C5/C6 deep tendon reflex?

A

Biceps or brachioradialis tendon

25
Q

C7/C8 deep tendon reflex?

A

Triceps tendon