Action potential propagation into the presynaptic dendrites of rat mitral cells
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چکیده
منابع مشابه
Action potential propagation into the presynaptic dendrites of rat mitral cells.
1. Dendritic patch-clamp recordings were obtained from mitral cells in rat olfactory bulb slices, up to 350 microns from the soma. Simultaneous dendritic and somatic whole-cell recordings indicated that action potentials (APs) evoked by somatic or dendritic current injection were initiated near the soma. Both the large amplitude (100.7 +/- 1.1 mV) and the short duration (1.38 +/- 0.07 ms) of th...
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Odors evoke beta-gamma frequency field potential oscillations in the olfactory systems of awake and anesthetized vertebrates. In the rat olfactory bulb, these oscillations reflect the synchronous discharges of mitral cells that result from both their intrinsic membrane properties and their dendrodendritic interactions with local inhibitory interneurons. Activation of dendrodendritic synapses is...
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Action-potential propagation into the axon terminals of olfactory receptor cells was measured with the use of voltage-sensitive dye imaging in the isolated spiny lobster brain. Conditioning shocks to the olfactory nerve, known to cause long-lasting suppression of olfactory lobe neurons, allowed the selective imaging of activity in receptor cell axon terminals. In normal saline the optical signa...
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It was thought previously that cardiac muscle gap junctions provide low-resistance connections between cells and permit the local-circuit current to flow. Some evidences show that myocardial cells may not require low-resistance connections for successful propagation of the action potential (AP). It seems that some other types of mechanisms must be involved in AP propagation. In this article, we...
متن کاملThe Different Mechanisms of Action Potential Propagation in the Heart
It was thought previously that cardiac muscle gap junctions provide low-resistance connections between cells and permit the local-circuit current to flow. Some evidences show that myocardial cells may not require low-resistance connections for successful propagation of the action potential (AP). It seems that some other types of mechanisms must be involved in AP propagation. In this article, we...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1997
ISSN: 0022-3751
DOI: 10.1111/j.1469-7793.1997.359be.x