Nervous System Nerve Impulses Neurons

Nerve impulse transmission refers to the ability of the neuron to...

• reproduce

• receive an chemical signal

• produce sodium or potassium

• send an electrochemical signal

A change in the external environment that initiates an impulse is known as a

• synapse

• response

• stimulus

• receptor

The voltage difference between the inside (-) and the outside (+) of the neuron in the resting state is called........

• neutral state

• active transport

• action potential

• resting membrane potential

Action potential refers to

• a very positive charge inside and outside of the neuron

• a very negative charge inside and outside of the neuron

• a change of charge between the inside and outside of the neuron

• action outside the membrane that cause the neuron's membrane to close all its pores

Which structures in a human transmit electrochemical messages?

• veins

• neurons

• nephrons

• lymph vessels

Which of the following gate opens during depolarization

• Na⁺ gates

• K⁺ gates

• Na⁺/K⁺ pump

• H⁺ pump

Which of the following gate opens during repolarization

• Na⁺ gates and Na⁺/K⁺ pump

• K⁺ gates and Na⁺/K⁺ pump

• Na ⁺ and K⁺ gates

• Na⁺ gates only

During depolarization outside of the cell is ......... charged and inside of the cell is............ charged

• negatively / positively

• positively / negatively

• positively/ positively

• negatively/ negatively

W

• Axon Terminal

• Neurotransmitters
• Dendrite
• Synapse

What is the gap between the axon terminal of one neuron and the dendrite of the next neuron called?

• Synapse
• Node of Ranvier
• Joint
• Neuromuscular Junction