Mods 9-11

Describes the fact that a neuron fires at the same intensity despite the intensity of the stimulus.

• Threshold
• Repolarization
• All or None Principle
• Action Potential

When a neuron is not engaged in an impulse.

• Resting potential
• Action potential
• Neural potential
• Synaptic potential

Excess neurotransmitters in the synapse that goes back into the presynaptic neuron.

• Resting potential
• Reuptake
• Retroactivity
• Repolarization

Inhibits or blocks the effects of neurotransmitters.

• Aganost
• Antagonist

What number(s) on the graph represents the Resting Potential?

• 1 and 2
• 1 and 5
• 2 and 3
• 3 and 4

Multiple sclerosis is an autoimmune disease in which the body's own immune system destroys the _____________ of the nerve axons. 

• Myelin
• Dendrites
• Axon Terminal
• Nodes of Ranvier

The brain's supporting cells are called: 

• glial cells
• mitochondria
• neurons
• nuclei

______ send signals away from neurons whereas ______ receive signals from other neurons.  

• Axons; Dendrites
• Synapses; dendrites
• Dendrites; axons
• Axons; synapses

W

• Axon Terminal Button
• Neurotransmitters
• Dendrite
• Synapse

X

• Axon Terminal Button
• Neurotransmitters
• Dendrite
• Synapse