Vocabulary Quiz 3

What is the basic building block of the nervous system?

• Dendrites

• Myelin Sheath

• Axon

• Neuron

Which part of the neuron receives messages and conducts impulses toward the cell body?

• Myelin Sheath

• Axon

• Dendrites

• Neuron

Which part of the neuron passes messages to other neurons or to muscles and glands?

• Dendrites

• Myelin Sheath

• Axon

• Neuron

What is the fatty tissue layer that enables faster transmission of neural impulses?

• Myelin Sheath

• Dendrites

• Axon

• Neuron

What is a brief electrical charge that travels down an axon called?

• Synapse

• Action Potential

• Threshold

• All or Nothing Response

What is the level of stimulation required to trigger a neural impulse called?

• All or Nothing Response

• Threshold

• Synapse

• Action Potential

What is a neuron's reaction of either firing or not firing called?

• Action Potential

• Threshold

• All or Nothing Response

• Synapse

What is the junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron called?

• Endorphins

• Reuptake

• Neurotransmitters

• Synapse

What are chemical messengers that cross the synaptic gaps between neurons called?

• Endorphins

• Reuptake

• Neurotransmitters

• Synapse

What is the reabsorption of neurotransmitters by the sending neuron called?

• Synapse

• Neurotransmitters

• Reuptake

• Endorphins