- Spinal Canal and Muscle–Nerve Physiology 137
Dorsal root
ganglionDorsal
rootVentral rootSpinal
nerveDorsal
ramusVentral
ramusGray
ramus
White
ramusSympathetic
ganglionVertebral
bodyParaspinal
innervationIntercostal
nerveSpinous
process
Transverse
processLaminaAnt. horn Pedicle
cellDRAWING 8-4 Nerve Roots & Rami