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- 1. Multiple Choice
What part of a neuron RECEIVES (GETS) the signal from another neuron?
axon
dendrites
axon terminal
- 2. Multiple Choice
When a neuron is resting, the inside of the axon (inside the cell) has a ____________ charge.
positive
negative
no
- 3. Multiple Choice
What is the FIRST channel to open in the cell membrane when an action potential occurs?
Sodium (Na+)
Potassium (K+)
Calcium (Ca2+)
Chloride (Cl-)
- 4. Multiple Choice
Which ions move into and out of the cell as part of the electrical nerve impulse?
Chloride (Cl-) and Sodium (Na+)
Potassium (K+) and Sodium (Na+)
Sodium (Na+) and Calcium (Ca2+)
Chloride (Cl-) and Calcium (Ca2+)
- 5. Multiple Choice
Name the insulating membrane that surrounds parts of the axon, helps to protect the axon, and supports the action potential?
Axon
Dendrites
Node of Ranvier
Myelin Sheath
- 6. Multiple Choice
Where in the neuron is the nucleus found?
axon
cell body
axon terminal
synapse
- 7. Multiple Choice
The sodium (Na+) -potassium (K+) pump
sends Na+ into the cell.
sends K+ into the cell.
sends Na+ into the cell and K+ out of the cell.
sends K+ into the cell and Na+ out of the cell.
- 8. Multiple Choice
Nerve impulses inside a neuron are
electrical.
chemical.
- 9. Multiple Choice
TRUE or FALSE: An action potential can only move in ONE direction down the axon.
TRUE
FALSE
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