nbme - hope27

[ArchivalUser]

The action potential in excitable cells is a result of changes in which of the following?

A. Energy-driven membrane pumps
B. Ionic equilibrium potential
C. Membrane ionic conductances
D. Transmembrane concentration gradient
confused between c and d,? do u guys say?

[ArchivalUser]

come on guys,plz answer...

[ArchivalUser]

it has to be C.......

[ArchivalUser]

I am not sure, but go for D.

[ArchivalUser]

remember the change in concentration of ions is negligible during an action potential it is the electrical gradient that matters more.....

[ArchivalUser]

yes ,c and d both seem 2 b correct to me,lets see ? others have got to say.

[ArchivalUser]

ok zido,may b u r right,thanks again