What are the thin fibers that send messages between the brain and different parts of the body?

Are dendrites or dendrons

Explanation:

they are that part of a neuron where the bio-quemical stimulation is received from a vast number of neural cells to the cell body, dendrites/dendrons use to form branches or trees complex often called dendritic arborization. They use to have some electrical properties and high plasticity and are an essential part of the central nervious system in eukarya domain, specially mammals.

Dendrites branch from the body and axons send the message