In Their Classic Experiments to Determine the Electrical Properties of Neurons

question 222

Multiple Choice

In their classic experiments to determine the electrical properties of neurons, Hodgkin and Huxley used

• A) fluid-filled pipettes to sample the cytoplasm of a rat spinal cord neuron.
• B) electrodes located on either side of the cell membrane of the squid giant axon.
• C) batteries to cause electrical changes in the membrane potential of sensory neurons.
• D) patch clamps to determine the activity of individual ion channels in brain neurons.
• E) recording pipettes to measure the activity of ion channels in the giant axons of earthworms.

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