How does curare work?
Nerve gas (chemical warfare)? Botox? 10) How is an EPP different from a post-synaptic potential? What ions and channels are involved in producing an EPP? An action potential in muscle? 11) What chemical is released from the motor neuron? How is it removed from the neuromuscular junction? 12) Compare and contrast the events at a synapse vs. a neuromuscular junction. 13) How long is the action potential in muscle? When does contraction begin? How long is it? A single twitch? Summated twitches? How do you summate twitches? 14) Outline all the steps: Begin with excitation of a motor neuron and end with muscle contraction. 15) How does muscle relax? 16) Define: isometric contraction, isotonic contraction. 17) What factors affect the strength or force of contraction? Explain how each factor affects the amount of force developed. At the level of a single muscle fiber? Whole-muscle? 18) What factors affect the speed of contraction? How? At the level of a single muscle fiber? Whole-muscle? 19)
