Search results
Results from the WOW.Com Content Network
Cell excitability is a property that is induced during early embriogenesis. [27] Excitability of a cell has also been defined as the ease with which a response may be triggered. [28] The resting and threshold potentials forms the basis of cell excitability and these processes are fundamental for the generation of graded and action potentials.
Abnormalities in neuronal excitability have been noted in amyotrophic lateral sclerosis and diabetes patients. While the mechanism ultimately responsible for the variance differs between the two conditions, tests through a response to ischemia indicate a similar resistance, ironically, to ischemia and resulting paresthesias.
Cell excitability is the change in membrane potential that is necessary for cellular responses in various tissues. The resting potential forms the basis of cell excitability and these processes are fundamental for the generation of graded and action potentials. Normal and pathological activities in the heart and brain can be modelled as ...
The dynamical systems approach to neuroscience is a branch of mathematical biology that utilizes nonlinear dynamics to understand and model the nervous system and its functions. In a dynamical system, all possible states are expressed by a phase space . [ 1 ]
The neurotransmitter most often associated with EPSPs is the amino acid glutamate, and is the main excitatory neurotransmitter in the central nervous system of vertebrates. [2]
Cell excitability (biology) This page was last edited on 24 January 2020, at 17:36 (UTC). Text is available under the Creative Commons ...
The standard rheobase definition assumes that a given cell does not spike when a current is not injected. However, some cells are spontaneously spiking (e.g. Cardiac pacemaker cells). For such cells, a negative (inhibitory) current will quiet them, while a slightly less negative current will result in action potentials. In such cases ...
It is also consistent with special definitions that are relevant to research and treatment. One definition is that irritability is a low threshold for experiencing frustration. [9] This definition is helpful for experiments because researchers can induce frustration by blocking desired rewards or doling out unexpected punishments.