Pages • 1
Membrane Potentials Membrane PotentialsResting Membrane Potential (rmp)[pic 1]Action Potential[pic 2]Synaptic Transmission of Action Potentials[pic 3]Basic mechanism[pic 4]NeurotoxinsThe –caines: Tetrodotoxin: Scorpion Toxins: Latrotoxin: Botulinum toxin: Nicotine: α-bungarotoxin: Physostigmine: Some Important Neurotransmitters/Receptors and Their LigandsReceptorReceptorDistributionGeneral FunctionNotesReceptorAgonist/AntagonistAcetylcholine (ACh)Nicotinic receptors————Muscarinic receptorsThroughout body, esp. neuromuscular junction and brain————PNS receptors: lungs, CV system, GI tractExcitatory————Excitatory (GI) orInhibitory (CV)Activates contraction of skeletal.