Weegy: Seratonin is an indolamine. User: A second nerve impulse cannot be generated until_____ A) proteins have been resythesized B) all sodium gates are closed C) the membrane potential has been reestablished D) the NA ions have been pumped back into the cell (More)

Weegy: Neurons come in a large variety of shapes, sizes and forms. They are often classified according to the number of processes that extend from the cell body. [ Because these processes essentially "pull" on the cell itself, cell bodies of these different types of axons also exhibit different shapes. ] User: can I give you some options to choose from Weegy: Sure. User: A)group B fibers are highly myelinated and have the highest conduction velocities (More)