Card Set Information
Epidermal growth factor (EGF)-protein
Stimulates epidermal and many other cell types to proliferate.
Nerve cells; endothelial cells lining blood vessels
causes smooth muscle cells to relax; regulates nerve-cell activity
Derivative of Choline
Excitatory neurotransmitter at many nerve-muscle synapses and in central nervous system.
gamma-Aminobutyric acid (GABA)
Derivative of the amino acid glutamic acid.
Inhibitory neurotransmitter in central nervous system.
Contact-dependent Signal Molecules