Neurons are cells in the nervous system that send and receive messages ... for scientists to work so hard on an insect wiring diagram, but fruit fly brains actually have quite a bit in common ...

The roundworm C. elegans is a simple animal whose nervous system has exactly 302 neurons. Each of the connections between those neurons has been ...

In the entire nervous system, there are only about 20,000 neurons ... is generally not excitable and is not near the “decision point” for the neuron. Above is a schematic diagram of the collection of ...

This diagram summarises how information flows from receptors to effectors in the nervous system.

Muscles and glands are called effectors. The diagram summarises how information flows from receptors to effectors in the nervous system. Receptors are groups of specialised cells. They detect a ...