HBS 2.1.3-2.1.4 Action Potential & Synapses

Front

During rest, which ion is found at a higher level inside the neuron? Sodium, Potassium, Sugar, Chloride

Back

Potassium

Front

During rest, which ion is found at a higher level outside the neuron? (Options: Sodium, Potassium, Sugar, Chloride)

Back

Sodium

Front

What is the voltage for the threshold of a neuron?

Back

-55 mv

Front

What is the voltage for the hyperpolarization of a neuron? Options: -70 mv, -80 mv, 40 mv, -110 mv

Back

-80 mv

Front

Which direction does the Action Potential travel in a neuron? Options: Cell Body to axon terminals, Nodes of Ranvier to Cell Body, Cell Body to Dendrites, Dendrites to Nodes of Ranvier

Back

Cell Body to axon terminals

Front

After an action potential, what restores the correct concentrations of ions?

Back

Sodium-Potassium Pump

Front

Which type of channel opens first? (Options: Sodium, Potassium, Chloride, Sugar)

Back

Sodium

Front

Where does a signal (like an action potential) enter a neuron? Options: Axon, Dendrite, Axon Terminals

Back

Dendrite

Front

What ion is used in an Action Potential? Options: Na+ (Sodium), Ca++ (Calcium), Cl- (Chlorine)

Back

Na+ (Sodium)

Front

Which type of protein is NOT used in an action potential? Options: Cl- (chlorine) facilitator, Na+ (sodium) channel, K+ (potassium) channel

Back

Cl- (chlorine) facilitator