| 1 | The roots, or dendrites, of these elongated nerve cells gather information. | |
| 2 | The key difference involves something known as dendritic cells. | |
| 3 | But how might dim light have brought about dendritic spine changes? | |
| 4 | The axon is much longer than the dendrites and, in fact, some axons are many feet long. | |
| 5 | These chemicals are known as neurotransmitters and they affect the dendrites. |