Baby Photograph

Neurons

Neurons are the basic cells considered to be the building blocks of the brain. In fact, most attention in early brain development focuses on neurons since these cells are believed to be the main components of intelligence.

Neurons have four parts: the dendrites, the cell body, the axon and the synapses. Neurons communicate with each other through electrical signals. Synapses connect neurons into pathways that enable all brain processes to occur.

 

Dendrite Illustration

Dendrites: bring in electrical signals from other neurons.

Neuron Cell Body Illustration

Cell body: command center of the neuron that decides whether or not to send signals on to other neurons.

Axon of a Neuron Illustration

Axon: sends electrical signals to other neurons.

Illustration of a Synapse

Synapse: microscopic gap between neurons where chemicals can control change brain activity.