{ "nid": "49", "details": "\x3cspan class=\"title\"\x3eNerveWorks™: Advanced Resting Potential I: GHK\x3c/span\x3e\x3cbr/\x3e\n\x3cspan class=\"description\"\x3eIn this exercise, you explore the behavior of a resting neuronal membrane permeable to both K+ and Na+. You determine how the resting potential behaves when either permeability ratios or ion concentrations are changed. This exercise introduces the Goldman-Hodgkin-Katz Equation, which relates Vrest to ion concentrations and permeabilities. You compare this model to the ohmic model where channels behave as resistors with current flowing through open channels in linear proportion to the difference between the voltage across the membrane and the Nernst potential for the permeant ion.\r\n\x3c/span\x3e\x3cbr/\x3e\n\x3cbr/\x3e\n\x3cstrong\x3eKey Concepts\x3c/strong\x3e: GHK equations; Resting potential\x3cbr/\x3e\n\x3cstrong\x3eCourses\x3c/strong\x3e: Neurobiology\x3cbr/\x3e\n          \x3cbr/\x3e\x3ca href=\"/search_result_details/brief/49\" class=\"node_brief\"\x3eRead less\x3c/a\x3e        \x3cbr/\x3e  \x3c/span\x3e \x3c!-- description --\x3e\n" }