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Physioex Exercise 3 Activity 1 Study Questions and Answers
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Physioex Exercise 3 Activity 1 Study Questions and Answers
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Physioex Exercise 3 Activity 1 StudyQuestions and Answers
A negative membrane potential was recorded when the tip of
the microelectrode was - Correct Answer ✅ both inside the
cell body and inside the axon
which of the following caused a change in membrane
potential from -70 to -40 in the cell body - Correct Answer
✅ an increase in extracellular K+
Which of the following has the most negative voltage -
Correct Answer ✅ between the inside of the axon and the
outside of the axon with control K+ ECF
Explain why increasing extracellular K+ reduces the net
diffusion of K+ out of the neuron through the K+ leak
channels - Correct Answer ✅ the K+ ions move from high
concentration to low concentration so when there is a higher
concentration outside of the cell, the K+ ions will be less
likely to move out of the cell
Explain why increasing extracellular K+ causes the
membrane potential to change to a less negative value. How
well did the results compare with your prediction? - Correct
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