Most neurons have three parts, the cell body, the dendrites, and the axon. The cell body contains the nucleus. The nucleus is surrounded by cytoplasm that includes all of the typical mammalian organelles. Cell bodies also contain clumps of yellowish brown granules of lipofuscin. This is a pigment that collects with age as the end-product of lysosome activity. Additionally, the RER is organized into a orderly arrangement known as the chromatophilic substance. ...
Neurons and their parts are discussed in funtion and structure.