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Questions and Answers
Which type of neuronal electrical signal is recorded across the plasma membrane of an excitable cell?
Which type of neuronal electrical signal is recorded across the plasma membrane of an excitable cell?
- Membrane potential
- Synaptic potential
- Receptor potential
- Action potential (correct)
What is the purpose of poking a glass needle with salt water into a portion of a cell during recording?
What is the purpose of poking a glass needle with salt water into a portion of a cell during recording?
- To measure the synaptic potential
- To measure the action potential
- To measure the receptor potential
- To measure the membrane potential (correct)
What triggers a small potential known as the receptor potential?
What triggers a small potential known as the receptor potential?
- Poking the glass needle into a cell
- Recording across the plasma membrane
- Touching the sensory neuron (correct)
- Stimulating the cell body of a presynaptic neuron
What causes a small voltage change known as the synaptic potential?
What causes a small voltage change known as the synaptic potential?
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Which statement is true about the membrane potential of excitable cells?
Which statement is true about the membrane potential of excitable cells?
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