neuron neu·ron (no͝or′ŏn′, nyo͝or′-) n. 1.Any of the impulse-conducting cells that constitute the brain, spinal column, and nerves in vertebrates, consisting of a nucleated cell body with one or more dendrites and a single axon. ...
Regulation and restoration of motoneuronal synaptic transmission during neuromuscular regeneration in the pulmonate snail Helisoma trivolvis The relevant locations of concern are (I) impulse propagation along the motor axon into axon branches, (II) neuromuscular transmission and (III) propagation of action...
(or axis cylinder), is covered by an electrically excitable conducting membrane that serves to transmit the potentials. Having reached the terminal sections of the axon, the nerve impulse excites the secretory membrane; as a result of this, a physiologically active substance, either a mediator ...
action potentials can only occur at the nodes and are conducted from node to node - jumping, which speeds up nerve impulse conduction and conserves energy myelination creates a faster nerve conduction that demyelination what is the net effect of myelination on nerve impulse conduction?
The article is devoted to the issue of minimizing the impact of impulse noise on broadband transmission systems of discrete messages when operating AIS systems on inland waterways of the Russian Federation. Differences in the use of broa... IA Sikarev,VV Sacharov,AN Pivovarov,... - IOP Publi...
in target cells. While we emphasize neuron-to-neuron transmission, the principles we discuss can involve non-neuronal cells as targets or as regulators of signaling. Finally, neuromodulatory neurons often release multiple transmitters; we refer to previous reviews on the topic of co-transmission [...
The microstructure of input impulse train, the size of a unitary EPSP , and the extent of spontaneous firing activity of a single neuron had an important influence upon the effective summation of arriving synaptic inputs, the elicitation of output spikes, and intervals between succeeding output ...
Impulse activity of midbrain dopamine neurons modulates drug-seeking behavior. Psychopharmacology (Berl) 168: 84–98. Martinez V, Wang L, Rivier J, Grigoriadis D, Tache Y (2004). Central CRF, urocortins and stress increase colonic transit via CRF1 receptors while activation of CRF2 receptors ...
of a neural impulse occurring in the postsynaptic neuron. There are two types of PSPs,excitatory (EPSPs)andinhibitory (IPSPs).EPSPs increase and IPSPs decrease the likelihood that the postsynaptic neuron will fire a neural impulse. The rate of firing of a neuron at a particular time depends...
3. The passage of a nerve impulse across an anatomic cleft, as in autonomic or central nervous system synapses and at neuromuscular junctions, by activation of a specific chemical mediator that stimulates or inhibits the structure across the synapse. 4. In general, passage of energy through a...