Firing A Neuron

Question 1

Defintion of Resting potential and it’s millivolt

Answer 1

Condition in which the neuron is not firing -70 millivolts
-polarized membrane
-inside membrane negative
-outside membrane positive

Question 2

Graded potential

Answer 2

It is a spreading voltage change that occurs when the neural membrane receives a signal from another cell two things happen
-decrease in cell polarization (fires the cell)
-increase polarization ( de-fires cell)
-might move RP from -70Mv to -60 Mv

Question 3

Action potential and it’s millivolts

Answer 3

A temporary shift in the polarity of the cell membrane, which leads to the firing of a neuron
-50 Mv to +40Mv
If graded potential fires, cell membrane opens up to positive sodium ions changing the potential to +40Mv

Question 4

It is polarized, with a negative charge inside the cell membrane and has a positive outside, what is this potential

Answer 4

Resting potential

Question 5

When a neuron is stimulated by another, it’s cell membrane is either hyperpolarized or depolarized, which potential is it?

Answer 5

Graded potential

Question 6

If the cell is depolarized by enough graded potential the neurons fire, what is this potential called

Answer 6

Action potential