Threshold potential Graded potential Pacemaker potential Synaptic potential Acti

Question

Threshold potential Graded potential Pacemaker potential Synaptic potential Action potential Resting membrane potential or resting potential Membrane potential or transmembrane potential Potential or potential difference Receptor potential Equilibrium potential TABLE 6.3 A Miniglossary of Terms Describing the Membrane Potential The voltage difference between two points due to separated electrical charges of opposite sign The voltage difference between the inside and outside of a cell The voltage difference across a membrane that produces a flux of a given ion species that is equal but opposite to the flux due to the concentration gradient of that same ion The steady potential of an unstimulated cell A potential change of variable amplitude and duration that is conducted decrementally; has no threshold or refractory period A brief all-or-none depolarization of the membrane, which reverses polarity in neurons; has a threshold and refractory period and is conducted without decrement A graded potential change produced in the postsynaptic neuron in response to the release of a neurotransmitter by a presynaptic terminal; may be depolarizing (an excitatory postsynaptic potential or EPSP) or hyperpolarizing (an inhibitory postsynaptic potential or IPSP) A graded potential produced at the peripheral endings of afferent neurons (or in separate receptor cells) in response to a stimulus A spontaneously occurring graded potential change that occurs in certain specialized cells The membrane potential at which an action potential is initiated

Explanation / Answer

The answers are numbered according to the table:

1) Potential or potential difference.

2)The voltage difference between the inside and the outside cell is called membrane potential.

3) Action potential

4) Resting membrane potential

5) Equilibrium potential

6) Graded potential

7) Synaptic potential

8) Receptor potential

9) Pacemaker potential

10) Threshold potential

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