Question

Describe how the following stages occur in a neuron in terms of ion movement across the cell membrane: resting potential, threshold potential, depolarization, repolarization.

Answer 1

Help Please

Answer 2

@PRAETORIAN.10

Answer 3

well we should probs start with definitions so we know where we're at

RESTING POTENTIAL the electrical potential of a neuron or other excitable cell relative to its surroundings when not stimulated or involved in passage of an impulse.

Answer 4

The threshold potential is the critical level to which the membrane potential must be depolarized in order to initiate an action potential.

Answer 5

DEPOLARIZATION is the loss of polarization; especially : loss of the difference in charge between the inside and outside of the plasma membrane of a muscle or nerve cell due to a change in permeability and migration of sodium ions to the interior.

Answer 6

In neuroscience, repolarization refers to the change in membrane potential that returns it to a negative value just after the depolarization phase of an action potential has changed the membrane potential to a positive value.

Answer 7

So the first one you think would be resting potential or do you think that would be the last one?

Answer 8

Resting Potential Depolarization threshold potential repolarization
Because the threshold potential can only happen after depolarization.

Answer 9

i concur (sorry it took so long i was on the phone)

Answer 10

we can simplify it by saying
we have two surfaces of nerve cell the outer and inner surface
resting : when the outer layer ion charge more positively than the inner layer
deplarization : we have the counter part of this state
repolarization : retun to the polarization
hyperpolarization : the inner negative ion charges will be more negtive even more than the resting potential