Fig. 4. Medial hair (MH) stimulation excites VIL bilaterally and multisegmentally. (A) The preparation consisted of a whole animal with the gut removed and pinned to display the ventral muscles and nerve cord. A suction electrode was placed on muscle fibers of VIL. For illustrative purposes, the size of the nerve cord has been exaggerated relative to the segmental muscles. (B) Representative traces are shown from extracellular recordings taken from VIL in segments A3 (N=3), A4 (N=10), A5 and A6 (N=3) (left side) and A5 (right side, N=2). Stimulus bars below the recordings show the duration of mechanical MH stimulation on the left side A4 proleg.