Fig. 4From: Enteric neuroanatomy and smooth muscle activity in the western diamondback rattlesnake (Crotalus atrox)Original traces of organ bath experiments showing examples of the effect of TTX, lidocaine, and sodium-free Krebs-solution on the response to EFS in different GI regions. A TTX did not change the on-response to EFS in the distal stomach. B Lidocaine abolished the on-response to EFS in the colon. C Sodium-free Krebs-solution abolished the on-response to EFS in the proximal stomachBack to article page