specific signaling, is transported from origin to insertion point by way of ~ persistent "tracks" [1] below is probably most directly relevent to what your as

specific signaling, is transported from origin to insertion point by way of ~ persistent "tracks" [1] below is probably most directly relevent to what your asking, but finer detail is here [2][3] [1] https://en.wikipedia.org/wiki/Intracellular_transport https://en.wikipedia.org/wiki/Intracellular_transport [2] https://en.wikipedia.org/wiki/Cell_signaling https://en.wikipedia.org/wiki/Cell_signaling [3] https://en.wikipedia.org/wiki/Signal_transduction https://en.wikipedia.org/wiki/Signal_transduction