Neural-Dural Transition at the Thoracic and Lumbar Spinal Nerve Roots: A Histological Study of Human Late-Stage Fetuses

Figure 6

Thoracic and lumbar nerve roots in a fetus with a crown-rump length (CRL) of 260 mm. (a) and (b) display the bilateral eighth and ninth thoracic nerves (T8, T9) and concomitant radicular arteries (RA). The loose tissue space between the ribs continues to the subpleural space (not shown). The nerve sheath (arrows) is thin, and a sheath (stars) of the dorsal root ganglion (DRG) is unclear. The two panels are shown at the same magnification (scale bar in (b), 1 mm).

(a)

(b)