Which cell type is functionally more important for communication?

1. Glial cells support rather than signal. 2. The other type carries the messages. 3. The neuron is the more functionally important of the two for the communicative function. 4. So the answer is the neuron. _Source: OpenStax 'Anatomy and Physiology 2e', Ch 12 'The Nervous System and Nervous Tissue'_