$$ \begin{array}{|l|r|r|r|r|} \text{Nerve type} & \text{Function} & \text{Diameter } (\mu m) & \text{Velocity } (m/s) & \text{Myelinated?} \\ \hline A \alpha & \text{Skeletal motor} & 10-20 & ~90 & Y \\ \hline A \beta & \text{Touch, pressure} & 5-10 & ~90 & Y \\ \hline A \gamma & \text{Muscle spindle} & 3-6 & ~90 & Y \\ \hline A \delta & \text{Pain, temperature} & 2-5 & ~90 & Y \\ \hline B & \text{Visceral afferent, autonomic} & 1-3 & ~90 & Y \\ \hline C & \text{Pain} & 0.5-1 & ~90 & N \\ \hline \end{array} $$