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Nerve, Muscle, Root > Nerve Muscle Root > Flashcards

Nerve Muscle Root Flashcards

1
Q

Shoulder abduction

A

Deltoid muscle
Axillary nerve
C5/C6

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2
Q

Elbow flexion

A

Biceps - C5/C6, Musculocutanous nerve

Brachioradialis - C6, Radial nerve

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3
Q

Elbow Extension

A

Triceps, C7, Radial,

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4
Q

Wrist extension

A

Extensor carpi radialis longus, radial, C6

Extensor carpi ulnaris, PIN (radial), C7

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5
Q

Supination

A

Supinator, radial nerve, C6/7

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6
Q

Pronation

A

Pronator teres, median, C6/7

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7
Q

Wrist flexion

A

Flexor carpi radialis, median, C6/7

Flexor carpi ulnaris, ulnar, C7-T1

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8
Q

Finger abduction

A

THUMB
Abductor pollicis longus, PIN (radial), C7
Abductor pollicis brevis, median, C8/T1

D2
FDI, Ulnar, C8/T1

PINKY
Abductor digiti minimi, ulnar, C8-T1

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9
Q

Finger flexion

A

Flexor digitorum superficialis, median, C7-T1
Flexor digitorum profundus 1&2, AIN (median), C7/8

Flexor pollicis longus, AIN (median), C7/8

Flexor digiti minimi, ulnar, C8/T1

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10
Q

Finger extension

A

D1 =

  • extensor pollicis longus, PIN (radial), C7 ***tested at carbo-metacarpal joint
  • extensor pollicis brevis, PIN (radial), C7 ***tested at metacarpophalangeal joint

D2-5 = Extensor digitorum, PIN (radial), C7

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11
Q

Hip flexion

A

Iliopsoas, femoral, L1, L2, L3

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12
Q

Hip extension

A

Gluteus Maximus, inferior gluteal, L5/S1

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13
Q

Knee Flexion

A

Hamstrings, sciatic, S1

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14
Q

Knee extension

A

Quadriceps, femoral, L2-4

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15
Q

Hip adduction

A

“Adductors” = adductor longus, adductor brevis, adductor magnus, gracilis, and pectineus
Obturator nerve
L2/L3

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16
Q

Hip Abduction

A

Gluteus medius/minimus & TFL
Superior gluteal nerve
L4, L5, S1

17
Q

Ankle dorsiflexion

A

Tibialis anterior, Deep peroneal, L4/L5

18
Q

Ankle plantar flexion

A

Gastrocs & Soleus, Tibial nerve (Sciatic), S1/S2

19
Q

Ankle inversion

A

Tibialis posterior, tibial nerve, L4-L5

20
Q

Toe extension

A

Extensor digitorum longus, deep peroneal nerve, L5/S1

Extensor hallucis longus, deep peroneal nerve, L5/S1

21
Q

Ankle inversion

A

Peroneus longus & brevis, superficial peroneal nerve, L5/S1

22
Q

Muscles Innervated by Radial Nerve

A

At axilla
- Triceps, Bracioradilais

At spiral groove
- Extensor carpi radialis longus

PIN:

  • Supinator
  • Extensor carpi ulnaris
  • Extensor digitorum
  • Abductor policis longus
  • Extensor pollicis longus
  • Extensor pollicis brevis
  • Extensor indices
23
Q

Muscles Innervated by Median Nerve

A
  • Pronator terres
  • Flexor carpi radialis
  • Flexor digitorum superficialis
  • LOAF (Lumbricles I & II, Opponens pollicis, Abductor pollicis brevis (APB), Flexor pollicis brevis)

AIN

  • Pronator quadratus
  • Flexor digitorum profundus I & II
  • Flexor pollicis longus (FPL)
24
Q

Muscles Innervated by Ulnar Nerve

A
  • Flexor carpi ulnaris
  • Flexor digitorum profundus III & IV
  • Hypothenar muscles
  • Adductor pollicis
  • Flexor pollicis brevis
  • Palmar interossei
  • Dorsal interossei
  • Lumbricles III & IV

Ulnar at elbow vs (hypothenar sensory changes)
Ulnar at wrist (4th and 5th finger sensory changes) ***to differentiate elbow vs wrist, you’re looking for conduction block on EMG/NCS

25
Q

C6 vs Median

A

C6 = Deltoid (axillary), biceps (MC), extensor carpi radialis (radial)

Median = FDP (C8/T1), APB (C8/T1)

26
Q

C7 vs Radial

A

C7 = Pronator terries (median)

Radial = Brachioradialis (C5/C6)

27
Q

C8/T1 vs Ulnar

A

C8/T1 & Lower trunk = APB (median), FPL (median/AIN), Extensor indices (radial)

Medial Cord = Extensor indices spared

Ulnar =

28
Q

Foot drop

A

L5 = Hip abduction

Sciatic = Knee flexion, Inversion

Peroneal
- Common = Dorsiflexion, Eversion

  • Deep = Dorsiflexion (eversion is superficial peroneal)

****You can differentiate sciatic vs peroneal on EMG with the short head of the biceps femoris (sciatic, not peroneal)

Nerve, Muscle, Root (1 decks)

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