Which of the Following Statements Are True of a Nerve

question 4

Multiple Choice

Which of the following statements are true of a nerve impulse (Select all that apply) ?

• A)Depolarization is the reversal of charges on either side of the neuron membrane.
• B)The entry of Na+ ions brings about depolarization of a neuron.
• C)During repolarization,the negative charge is restored to the outside of the neuron membrane.
• D)The entry of K+ ions brings about repolarization.
• E)An action potential is polarization followed by depolarization.
• F)The maximum speed of a nerve impulse is about 2 feet per second.

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Definitions:

Deficit Principle

A theory suggesting that a decrease in stimulation or input will cause humans to seek out more stimulation, to overcome the perceived deficit.

Satisfied Need

A requirement or desire of individuals or organizations that has been fulfilled.

Competitive Market

A market structure characterized by a large number of buyers and sellers, where no single party can dictate prices or terms of trade.

Government Antitrust

Regulatory actions and laws implemented by the government to promote competition and prevent monopolies and other practices that restrain trade.