The neuronal pathways of exocytosis and endocytosis. During exocytosis newly synthesized proteins are packages at the Golgi apparatus, and delivered to the plasma membrane where vesicles fuse, adding new membrane material and releasing their cargo. In endocytosis, a vesicle buds, encapsulating its cargo. The endocytic vesicles are cycled through the endosome and either delivered to be degraded (lysosome) or to be recycled (Recycling endosome). Golgi and ER outposts in the dendrites, axon and growth cones of developing neurons allow for local synthesis and trafficking of proteins and act as way stations within the trans-Golgi network.