the electrical charge of a neuron when it is not firing a neural impulse. (70)
the inactive state of a neuron in which the cytoplasm is negatively charged with respect to the outside of the cell.
The membrane potential characteristic of a nonconducting, excitable cell, with the inside of the cell more negative than the outside. restriction enzyme A degradative enzyme that recognizes and cuts up DNA (including that of certain phages) that is foreign to a bacterium. restriction fragment length polymorphisms (RFLPs) Differences in DNA sequence on homologous chromosomes that result in different patterns of restriction fragment lengths (DNA segments resulting from treatment with restriction enzymes); useful as genetic markers for making linkage maps. restriction site A specific sequence on a DNA strand that is recognized as a "cut site" by a restriction enzyme. reticular formation reticulum, a network] A brain circuit involved with alertness and direction of attention to selected events; consists of a loose network of interneurons running through the brainstem, plus certain neurons in the thalamus that function as an extension of this network.
Electrical charge maintained by a resting neuron.
a membrane potential characteristic of a non-conducting, excitable cell, where the inside of the cell is more negative than the outside.
The transmembrane potential of a normal cell under homeostatic conditions.
the potential difference between the two sides of the membrane of a nerve cell when the cell is not conducting an impulse
The electrical potential ({neg}65 millivolts) on the inside of a neuron not conducting a nerve impulse. 612
The steady electrical potential across a membrane. In humans, the value is around -70mV, meaning the inside is negative relative to the outside of the cell.
The difference in electrical charge across the plasma membrane of a neuron.
The membrane potential of a living cell at rest. In cells at rest, the interior is negative to the exterior. (Contrast with action potential, electrotonic potential.)
The difference in voltage across a neuronal membrane when the neuron is not firing.
The steady state membrane potential of a neuron in the absence of incoming synaptic or sensory influences.
The voltage that is across the membrane of an axon when that portion of the action is not conducting an action potential but is in a state ready to conduction an action potential.
The resting potential of a cell is the membrane potential that would be maintained if there were no action potentials, synaptic potentials, or other active changes in the membrane potential. In most cells the resting potential has a negative value, which by convention means that there is excess negative charge inside compared to outside. The resting potential is mostly determined by the concentrations of the ions in the fluids on both sides of the cell membrane and the ion transport proteins that are in the cell membrane.
