Dermatomes & Myotomes

What are dermatomes & myotomes?

Cervical Nerve Roots Nerve Root Dermatome Myotomes Reflexes C1 Top of head Resisted cervical rotation C2 Temple Shoulder shrug C3 Lateral neck C4 Top of shoulder; upper trap Biceps tendon C5 Lateral shoulder  arm to wrist Resisted shoulder abduction C6 Radial side (thumb, index finger) Resisted elbow flexion & wrist extension Brachioradialis C7 Index, middle, ring finger Resisted elbow extension & wrist flexion Triceps tendon C8 Little finger, ulnar border of hand Resisted thumb adduction

Thoracic Dermatomes Nerve Root Dermatome Myotome Reflexes T1 Medial forearm Resisted finger adduction T2 Medial upper arm