Electrical Activity in Nerves - A NERVE CELL MEMBRANE HAS A SPECIFIC CHARGE – THE RESTING MEMBRANE POTENTIAL - The Resting Potential

Question 1

The resting potential is made more positive— This pushes toward an action potential. Depolarizations are caused by excitatory neurotransmitters (like ACh, Noradrenalin, Glutamate).

Answer 1

Depolarization

Question 2

The resting potential is made more negative— This pushes away an action potential (keeps it from occurring). Hyperpolarizations are caused by inhibitory neurotransmitters (like dopamine in skeletal muscle, GABA, Endorphins/Enkephalins).

Answer 2

Hyperpolarization

Question 3

-The resting potential is restored after depolarization or hyperpolarization has taken place.

Answer 3

Repolarization

Question 4

What is Hyperpolarization?

Answer 4

The resting potential is made more negative— This pushes away an action potential (keeps it from occurring). Hyperpolarizations are caused by inhibitory neurotransmitters (like dopamine in skeletal muscle, GABA, Endorphins/Enkephalins).

Question 5

What is Repolarization?

Answer 5

The resting potential is restored after depolarization or hyperpolarization has taken place.

Question 6

What is Depolarization?

Answer 6

The resting potential is made more positive— This pushes toward an action potential. Depolarizations are caused by excitatory neurotransmitters (like ACh, Noradrenalin, Glutamate).

Question 7

*In the body depolarizations & hyperpolarizations are created by _ _ _ _ .

Answer 7

different neurotransmitters.

Question 8

Is extreamly negetive.

Answer 8

Hyperpolarization

Question 9

Depolarizations and hyperpolarizations happen when one _ _ cell releases a specific neurotransmitter onto a second _ _ cell. The connections between nerve cells where this happens are called _ _. (These are much like the synapses between nerve cells and skeletal muscle
cells).

Answer 9

nerve

nerve

SYNAPSES