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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Definitions:

Less Rigid

More flexible or adaptable in approach, structure, or behavior than previously or typically.

Biologically Determined

Refers to traits, behaviors, or conditions that are influenced by genetic make-up or biological factors.

Mental Rotation

The cognitive ability to rotate mental representations of two-dimensional and three-dimensional objects.

Spatial Ability

The capacity to understand, reason, and remember the spatial relations among objects or space.