LE Dermatomes, Myotomes, and Reflexes Flashcards

1
Q

hip flexion myotome

A

L1, L2

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2
Q

knee extension myotome

A

L3, L4

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3
Q

ankle dorsiflexion myotome

A

L4, L5

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4
Q

great toe extension

A

L5

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5
Q

Bowel/bladder myotome

A

S2-S4

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6
Q

inguinal area dermatome

A

L1

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7
Q

anterior mid-thigh dermatome

A

L2

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8
Q

Distal anterior thigh and medial knee dermatome

A

L3

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9
Q

medial lower leg and foot dermatome

A

L4

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10
Q

Lateral lower leg and foot dermatome

A

L5

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11
Q

posterior calf dermatome

A

S1

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12
Q

medial calcaneus dermatome

A

S2

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13
Q

ankle eversion myotome

A

S1, S2

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14
Q

Ankle plantarflexion myotome

A

S1, S2

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15
Q

Achille’s reflex

A

S1, S2

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16
Q

Patellar reflex

A

L2-L4

17
Q

Posterior tibial reflex

A

L5

18
Q

Heel walking

A

L5

19
Q

Toe walking

A

S1

20
Q

What are the grades for reflexes and what do they mean?

A

4+ : hyper-reflexive and indicative of upper motor neuron dysfunction or myelopathy
3+ : Reflex in upper half of normal
2+ : Refles in lower half of normal
1+ : present but diminished either as compared to the other side or as compared to normal
0 : absent