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Questions and Answers
What is the function of dendrites in a neuron?
What is the function of dendrites in a neuron?
- Prevent ion flow
- Produce action potential
- Carry impulses away from the cell body
- Carry impulses towards the cell body (correct)
What is the role of myelin sheath in a nerve fiber?
What is the role of myelin sheath in a nerve fiber?
- Carries impulses towards the cell body
- Acts as an insulator preventing ion flow (correct)
- Enhances ion flow
- Produces resting membrane potential
What is the main function of the resting membrane potential in a nerve?
What is the main function of the resting membrane potential in a nerve?
- Produces action potential
- Propagates the action potential
- Maintains difference in electric potential between inside and outside of the membrane (correct)
- Responds to external stimuli
What is the effect of threshold stimulus on a nerve?
What is the effect of threshold stimulus on a nerve?
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What is the role of nodes of Ranvier in a myelinated axon?
What is the role of nodes of Ranvier in a myelinated axon?
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