 |
 |
Embryonic chick neural tube
A cross-section through the developing spinal cord (neural tube) of a chick embryo. The brown stain shows two types of nerve cells (neurons): commissural neurons, which run down each side of the neural tube, and motor neurons, which carry messages from the brain to the muscles, growing out towards these developing muscles. The blue stain shows where the gene for a protein called cadherin 7 is switched on. The role of this protein in these regions is not yet certain. However, as cadherin 7 is involved in the way adjoining cells interact with each other, its presence here suggests that it might be important in controlling cell migration and interaction during the development of the nervous system.
Jonathan Stonehouse, Sara Hall and Jim Cohen.
|
|
 
|
|
