Estrogen-sensitive neurons in the hypothalamus are increased in size when estrogen is decreased.
Axons showing homotypic collateral sprouting can grow for long distances for over a year.
Dr. Azmitia's red sweater stimulates my cone receptors. All sensory information from the right side of the body will eventually be transmitted to the left side of the cerebellum. Synapses are permanent structures, and as such they cannot break and reform. The myelin sheath speeds up neural transmission along the axon. The reticular formation is activated by a variety of external environment.