Term
The neuron doctrine stipulates that neurons...
a) Depend on one another for their metabolic needs
b) Are continuous with one another through a system of tubes
c) Are contiguous with one another
d) Plus glial cells form functional units |
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Definition
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Term
Which neurotransmitter method provides an outline of entire neurons, including all of the cell's processes (axons and dendrites)?
a) Nissl stain
b) Radioctive glucose stain
c) Golgi stain
d) Axonal degeneration procedure |
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Definition
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Term
In which part of the neuron are the synaptic vesicles found?
a) Cell body
b) Dendritic spines
c) Axon hillock
d) Synaptic boutons |
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Definition
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Term
The output zone of the neuron is the
a) axon terminal
b) dendritic spine
c) cell nucleus
d) microtubule |
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Definition
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Term
Which of the following areas is not a sector of the cerebral hemispheres?
a) Parietal lobe
b) Brainstem
c) Temporal lobe
d) Frontal lobe |
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Definition
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Term
Which component forms the human central nervous system?
a) brain
b) cranial nerves
c) spinal cord
d) options a and c are correct |
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Definition
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Term
What are the cerebral ventricles?
a) a barrier that separate the blood from the brain
b) a group of glial cells
c) chambers filled with fluid
d) nerve cells connecting the brain with the rest of the body |
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Definition
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Term
| Which are the fundamental parts of the nerve cell? |
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Definition
Reception
Conduction
Transmission |
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Term
| What type of signals are the nerve cells? |
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Definition
electrical
- Action potential
- Local potentials
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Term
| What kind of channels are opened during the action potential? |
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Definition
Voltage gated Na+ channels
Voltage gated K+ channels at the end |
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Term
| What is the refractory period? |
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Definition
| inactive state of the voltage-gated Na+ channels |
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Term
| Why is the refractory period important? |
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Definition
| to prevent the action potential from being transmitted backward |
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