Fill in the appropriate word or term for the following statements. a. -150 mV
b. Voltage-gated
c. resting
d. super- depolarization
e. +30 mV
f. +15 mV action
g. action
h. close
i. open
j. hyperpolarization
1. Voltage-gated K -50 mV channels remain open, causing a of the membrane. The membrane is now in its relative refractory period.
2. The membrane is at the potentials occasionally generating graded potential. open
3. Voltage-gated K channelsand the resting potential of the membrane is restored.
4. At about voltage-gated Na* channels are inactivated, and voltage-gated K channels open. Kt exits the cell and repolarizes the membrane. At this time, the membrane is in its absolute refractory period.
close
5. An action potential is triggered when the threshold potential of about is reached. Voltage-gated Na+ channels open. Na* diffuses into the cell and depolarizes the membrane.