All neurones have the same basic parts. The 'control centre' of the cell is known as the cell body. The axon (nerve fibre) transmits electrical signals from the cell body. The dendrites are branching fibres that receive electrical signals from other neurones. The shape of a neurone is determined by the job it does. The axons of some neurones are shorter than 1 millimetre, while axons that carry signals from the spinal cord to the foot may be as long as a metre.