When the Resting Potential of a Neuron Becomes More Positive

question 75

Multiple Choice

When the resting potential of a neuron becomes more positive (e.g. ,goes from -70 millivolts to -63 millivolts) ,this is referred to as:

• A) inhibition.
• B) depolarization.
• C) hyperpolarization.
• D) an action potential.

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Definitions:

Pacinian

Referring to Pacinian corpuscles, pressure-sensitive mechanoreceptors that respond to deep, transient pressure and vibration.

Ruffini Corpuscles

Sensory receptors located in the skin that detect stretch, pressure, and warmth, playing a role in the sensation of touch and control of finger position.

Merkel Cells

Specialized cells found in the skin that are involved in the sense of touch, particularly in detecting pressure and texture.

Receptive Field

The specific area within the visual world that elicits a response from any sensory neuron.