Term
| resting membrane potential |
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Definition
| the constant voltage generated across a neuron's membrane at rest |
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Definition
| due to the activation of sensory neurons by external stimuli |
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Definition
| allow transmission of information from one neuron to another |
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Definition
| a type of electrical signal that travels along neurons' long axons; responsible for long-range transmission of information within the nervous system & allow the nervous system to transmit information to its target organs |
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Term
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Definition
| a current delivered making a membrane potential more negative |
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Term
| passive electrical responses |
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Definition
| hyperpolarizing responses; do not require any unique property of neurons |
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Term
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Definition
| a current that makes the membrane potential of a nerve cell more positive than its resting potential |
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Definition
| the certain level of membrane potential at which action potentials occur |
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Term
| action potentials occur _____ |
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Definition
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Term
| the intensity of a stimulus is encoded in the _____ of action potentials |
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Definition
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Definition
| proteins that actively move ions into or out of cells against their concentration gradients |
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Term
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Definition
| proteins that allow only certain kinds of ions to cross the membrane in the direction of their concentration gradients |
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