Ectodermal

... of the cell has begun and the cells when pulled apart will follow only a lineage (a mass of mesencymal tissue, or endodermal tissue, or ectodermal tissue). 3. All I know about that is that Obama has allowed tax dollars to be available to researchers to use stem cells. There is strict ...

See entire post

... of cells in what is known as the "progress zone." Coincidentially, to answer your question, the progress zone is directly beneath an ectodermal layer (the layer that generates the epidermis, nervous system, etc.) Bones are developed from the process known as endochondral ossification, ...

See entire post

... of hormone switching on and off, are all designed to keep the whole process going? Is the initial infection usually disseminated through the ectodermal layer? Why would touching, (or managing effectively to 'deal with'), part of this infection/infestation in one part of the body be felt instantaneously ...

See entire post