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Figure 5. Inhibitory pathways stop swimming and reduce responses. (A) Impulse recording from trigeminal sensory neuron innervating the cement gland shows the resting discharge and increased firing when the cement gland mucus strand is in tension. (based on Lambert et al., 2004a) (B) Intracellular recording from an mhr, with long descending contralateral axon in spinal cord, shows it is inhibited during swimming and fires when the cement gland is prodded and swimming stops (C). Injecting current to make this single mhr fire can stop swimming. (based on Perrins et al., 2002). Image published in: Roberts A et al. (2010) Image downloaded from an Open Access article in PubMed Central. Copyright © 2010 Roberts, Li and Soffe. Larger Image Printer Friendly View

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