Developmental Signaling Flashcards
morphogenesis
structural development in organism
induction
process of one cell group altering the behavior of others
inducer
cell that produces signal
responder
tissue that is induced or responds to signal
competence
has ability to respond to inducers signaling.
reciprocal interaction
tissue is induced, it becomes an inducer which activates teh originally signaling tissue
instructive interaction
responder receives instructions for new gene expression
permissive interaction
cell is ready to proceed. all genes are ready, but awaiting proper environment
epithelia
connected cells from any germ layer
mesenchyme
supporting cells from mesoderm
paracrine ligand
factors traveling short distances able to diffuse
juxtacrine
factors that do not diffuse and travel between adjacent cells
