Visualize a Neuromuscular Junction

question 31

Essay

Visualize a neuromuscular junction.An impulse has been sent to the effectors (muscle cells)for a response.At rest,the endplate region has the following concentrations of sodium and potassium: [Na⁺in] = 10 mM,[Na⁺out] = 145 mM,[K⁺in] = 140 mM,and [K⁺out] = 5 mM.Remember that when acetylcholine binds to its receptors,a large opening of channels becomes permeable to both sodium and potassium.What is the membrane potential of the endplate region when stimulated by acetylcholine in this response?

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Definitions:

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