منابع مشابه
Why do taste cells generate action potentials?
Taste cells regularly generate action potentials, but their functional significance in taste signaling is unclear. A paper in BMC Neuroscience reveals the identity of the voltage-gated Na+ channels underlying action potentials, providing the foundation for insights into their function.
متن کاملAdenosine A Neuron-Glial Transmitter Promoting Myelination in the CNS in Response to Action Potentials
Neuronal activity influences myelination of the brain, but the molecular mechanisms involved are largely unknown. Here, we report that oligodendrocyte progenitor cells (OPCs) express functional adenosine receptors, which are activated in response to action potential firing. Adenosine acts as a potent neuron-glial transmitter to inhibit OPC proliferation, stimulate differentiation, and promote t...
متن کاملMinireview Why do taste cells generate action potentials ?
More than two decades ago, Steve Roper first reported that the large taste cells of the aquatic salamander Necturus are electrically excitable and generate action potentials in response to membrane depolarization [1]. It is now well documented that the taste cells of most, if not all, vertebrate species regularly generate action potentials not only on electrical stimulation, but also in respons...
متن کاملMembrane Potentials and Action Potentials
Electrical potentials exist across the membranes of virtually all cells of the body. In addition, some cells, such as nerve and muscle cells, are capable of generating rapidly changing electrochemical impulses at their membranes, and these impulses are used to transmit signals along the nerve or muscle membranes. In other types of cells, such as glandular cells, macrophages, and ciliated cells,...
متن کاملAction Potentials'
lntracellular Caz+, K+, CI-, and NOsactivities were measured with ion-selective microeledrodes in the liverwort Conocephalum conicum 1. at rest, during dark/light changes, and in the couese of adion potentials triggered by light or electrical stimuli. l h e average free cytosolic Caz+ concentration was 231 f 65 nM. We did not observe any light-dependent changes of the free cytosolic Caz+ concen...
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ژورنال
عنوان ژورنال: The Neuroscientist
سال: 2000
ISSN: 1073-8584,1089-4098
DOI: 10.1177/107385840000600109