Neurons: Neurons are the basic building blocks of the nervous system.100 billion neurons in the human brain.Transmit electrochemical signalsNeurons have three basic parts: Cell body or soma. This main partContains nucleus for DNA, endoplasmic reticulum and ribosomes ( for proteins) and mitochondria (for making energy).If the cell body dies, the neuron dies.Axon. This long, cable like…