Dermatomes

Dermatomes

• myotome: muscles innervated by spinal root

• dermatome: sensory skin area by spinal root

• Cervical roots come out above vertebrae, except C8

• no C1 dermatome. C1 only motor

• T1 below T1

Spinal Nerves

Shingles

Reflex

Nerve Root Syndromes

• herniation cause common

• if intervertebral disc between L4/L5 herniates: compress L5. Dorsiflexion reduced

Babinski

Primitive Reflex