Fig. 3.

Photomicrographs of a cell after transecting neurites in vitro. a, The cell is seen 9 d after plating and just before the neurites were cut. Neurites extend from the large remnant of the original axon. b, The cell 15 min after the neurites had been severed and (c) 7 d later. The appearance is radically altered because the axon and many of the neurites were resorbed.d, After an additional 7 d, new neurites have emerged. These continued to grow for several more days, and the cell died on day 35. Scale bar, 100 μm.