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NR, DL, Muscles
Muscle tests for corresponding nerve roots and disc levels
| Question | Answer |
|---|---|
| C5 Nerve RootC4 Disc Level | Deltoid innervated by axillary nerveBiceps innervated by musculocutaneous nerve |
| C6 Nerve RootC5 Disc Level | Wrist Extensors (extensor carpi radialis longis & brevis, extensor carpi ulnaris) innervated by the radial nerve |
| C7 Nerve RootC6 Disc Level | Triceps innervated by radial nerveWrist Flexors (flexor carpi radialis - median nerve and flexor carpi ulnaris - ulnar nerve)Finger Extensors - extensor digitorum communis, extensor indicis profundus, extensor digiti minimi - radial nerve |
| C8 Nerve RootC7 Disc Level | Finger Flexors - flexor digitorum profundus, flexor digitorum superficialis, lumbricals - innervated by the median and ulnar nerves |
| T1 Nerve RootC8 Disc Level | Finger abductors - dorsal interossei innervated by the radial nerveFinger adduction - palmar interossei innervated by the ulnar nerve |
| L4 Nerve RootL3 Disc Level | Foot dorsiflexion and inversion - tibialis anterior innervated by the deep peroneal nerve |
| L5 Nerve RootL4 Disc Level | Foot dorsiflexionBig toe dorsiflexion - Extensor Hallucis Longus (deep peroneal nerve)Toes 2, 3, 4 dorsiflextion - extensor digitorum longus and brevis (deep peroneal nerve)Hip and pelvis abduction - Gluteus Medius & minimums (sup. gluteal nerve) |
| S1 Nerve RootL5 Disc Level | Foot plantarflexion - gastroc and soleus (tibial nerve)Foot plantar flexion & eversion - peroneus longus & brevis (superficial peroneal nerve)Hip extension - gluteus maximus (inf. gluteal nerve) |
| C5 Reflex | Biceps |
| C6 Reflex | Brachioradialis |
| C7 Reflex | Triceps |
| C8 Reflex | No reflex |
| T1 Reflex | No reflex |
| L4 Reflex | Patellar Tendon |
| L5 Reflex | No Reflex |
| S1 Reflex | Achilles |