Question:
Why are neurons called excitable cells? Mention special features of the membrane of the neuron?
Solution:
Neurons are called excitable cells because they have an electrical potential difference
1. During the resting stage of the neuron, it has a sodium-potassium ion pump (i.e., Na+- K+ ion pump).
2. A change in the potential difference spread changes in the entire neuron
3. Stimulus in normally obtained in a place known as trigger zone in which sodium ions (i.e., Na+ ions) are abundantly present.
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