Neuron Anatomy and Physiology Review
Presentation
•
Science, Biology
•
10th - 12th Grade
•
Medium
Christina Melvin
Used 29+ times
FREE Resource
6 Slides • 2 Questions
1
Dr. Melvin, PLTW HBS
2
3
Multiple Choice
What is the "role" of myelin?
Insulation which allows quick electrical impulse transmission
Expose the neuron to the external environment
Chemical substances which transmit messages
Gap between two nerve cells
4
5
Multiple Select
What are the TWO main ions of the interior and exterior cell membrane?
Sodium
Iron
Potassium
Oxygen
6
Each neuron has a charged membrane
Charge will change based on neurotransmitter molecules and other stimuli
Membrane potential: difference in total charge between inside and outside of cell
At rest, a neuron is negatively charged.
7
Sodium (Na+) channels open, allowing Na+ into the cell.
Charge across the membrane decreases
Inside of cell becomes positive
This continues as the signal goes down the axon
8
Explain what is happening!
Dr. Melvin, PLTW HBS
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