CNS & PNS Histology & Physiology - BM5 NLM1

1. At resting membrane potential, which of the following is most likely to be true?

• There is a high [K+] inside the neuron and a high [Na+] outside the neuron, but the resting neuronal membrane is more permeable to K+ than Na+
• There is a high [K+] inside the neuron and a low [Na+] outside the neuron, but the resting neuronal membrane is more permeable to K+ than Na+
• There is a high [K+] inside the neuron and a high [Na+] outside the neuron, but the resting neuronal membrane is less permeable to K+ than Na+
• There is a high [K+] inside the neuron and a low [Na+] outside the neuron, but the resting neuronal membrane is less permeable to K+ than Na+