The cell body (soma or perikaryon) is large and contains:
the nucleus of the cell.
majority of the cell organelles that synthesize the materials needed by the neuron (neurone), particularly energy (mitochondria) and neurotransmitters (synthesized by the ribosomes and rough endoplasmic reticulum).
Some of the areas containing large amounts of Rough ER and ribosomes stain darkly and these areas are referred to as
The Nissl bodies give the grey coloration to the areas of the spinal cord that contain the cell bodies of the neurons, the so-called