1. All parts of the body are run by the nerves. When the skin irritates the neuron cells transmit the through the peripheral nervous system to the spinal cord and the brain. The brain sorts the in and choose how to response. It sends information to the muscles for an action. Which of the pass on messages from an organ to another? A. Brain B. Neuron C. Spinal Cord D. Peripheral Nervous Syst trients to the different body cells?