Fig. 6. Summary diagram of the inhibitory motor neuron supply to prothoracic muscles, as revealed by the combination of immunocytochemical, neuroanatomical and electrophysiogical techniques. The three inhibitory motor neurons are each marked by a particular colour: CI_59/81/82, green; CI_59/60, blue; SI₆₀, red. Compare also to the more realistic representation of nerves and muscles in Fig. 1. T1, T2, pro- and mesothoracic ganglia; TN, transverse nerve (remaining nerve and muscle labels see text).