Action Potential

Question 1

Before action potential sodium flows fast because?

Answer 1

Chemical and electrical pull

Question 2

After action potential potassium flows fast because

Answer 2

Chemical and electrical pull

Question 3

Resting action potential

Answer 3

cell is negative
Outside is positive
-70 mV

Question 4

Depolarizing stimulus

Answer 4

Signal is send through the axon

Question 5

Threshold is met

Answer 5

-55 mV
Voltage gated Na channels open
Delay voltage gated K channels open

Question 6

Na+ entry

Answer 6

Depolarizes the cell

Question 7

Na+ channels close

Answer 7

K+ channels open

Question 8

K+ exits cell

Answer 8

hyperpolarizes the cell

Question 9

Cell returns to resting potential

Answer 9

A new action potential can’t activate till reset is complete