pulses represent electrical activity in the epithelial cells underlying the recording electrode. An interesting feature of the colonial slow system is the ...
be evoked. This closely resembled the behaviour shown during normal feeding and included polyp expansion, local pharynx movements and.
a stained NIE-115 cell at several points on the growth cone, processes, and cell body. For each record the stage was adjusted to position the appropriate ...
some conduction system operating within the autozooids. Because of its in- variant shape, the first unit is considered to be a direct recording of that activity ...
Volume conduction does not ... taneous activity of several laminae in the cortex of the cerebellum ... activity of populations of cells in the brain, in most ...
Spontaneous and evoked electrical activity in the slow systems. Most attempts to record spontaneous activity under different conditions were unsuccessful ...
Aug 3, 2020 · Extracellular electron transfer (EET) allows microorganisms to gain energy by linking intracellular reactions to external surfaces.
Abstract. The neural activity in the medial articular nerve is partitioned on the basis of conduction velocity by correlation techniques.
PI can be induced by the application of a range of chem ical agents including oligosaccharides (Ryan and Farmer. 1991), abscisic acid (Pena-Cortés et al.
IT is an old story that living protoplasm is " irritable." This is one of the many and undeniably important truths of which-as Dr. Johnson used to say-men ...
units of the conduction system are so small that their activity goes undetected by recording electrodes on the surface of the body. Ventricular excitation ...
cells dissociate, the endodermal spaces become spherical and some of the cells ... sibility is that conduction of SMPs is linked with the conducting system of ...
Finally, for some experiments electrodes filled with 0.5M CaC12 (usually 2 to 4,Lm ... fact that spots of activity ... method of two-point external recording gave ...
element method, with semi-implicit time stepping, is developed to numerically solve the equations. Current flow through fiber branch points is governed by ...
that several conduction pathways must be present to ... ridge of several thousand elongated epithelial cells ... conduction system associated with each tentacle ...
Several other points are of interest in this prepa- ... Inset shows recording electrodes and large cell bodies (arrows). ... cells are obviously driven by the small ...
The primary pacemaker regions are located at the cardiovascular junction they alternate in periods of activity which change the direction of perista.
cells of the comb plates is neuroid, and that inhibition of ciliary activity is nervous. Certain cells in the ciliated grooves seem to represent neurons in ...
far from negligible; in some cells it omena in ... transport system continually carrying potassium into the cell. ... able electrical activity is of a different.
electrodes. A thousand stimuli were then applied ... train of impulses. Ganglionic facilitation. Most sympathetic trunks have numerous ganglion cells scattered ...
plifying system. Direct-coupled amplifiers seem to ... place many electrodes on the scalp. He could then ... At several points in this report we have referred.
in the nerve fiber and across the synapse. THE ACTION POTENTIAL. To study nervous activity there must be some means of measuring it or, more.
theremopile at a certain point in the nerve, while two electrodes gave a shock at the end of the nerve further from the muscle. In this experiment, one ...
In this and subsequent figures * represents the point at which the conduction ... electrical activity in the two 'slow conduction systems' - the SS1 and the SS2.
from many cells, a similar argument applies. The ... perpolarized beyond a certain point it jumps from a ... Graded and all-or-none electrical activity in in?
Some of this activity could be corre- lated with ... (c) The system could be composed of many short axons ... Conduction failure at branch points of neurites ...
Recordings from several electrodes attached to the ... (a) The conduction system ... suggests that the electrical activity of the ciliated cells caused by nervous ...
May 1, 2007 · ... activity recorded on electrodes 1,2, and 3. ... which contacts several granule cells, and each granule cell ... electrode individually (System ...
shed some light on the significance of the electrical activity of the nervous system, ... points to some wide- ... studying the activity of numerous cells of the ...
Oct 3, 2017 · a 2D array of microelectrodes, is widely used to detect the action potential of neurons and/or muscle cells (1–3). The characterization of ...
ing activity, numerous and large electrical deflections ... impulses reaching the cell from every point and that ... it at the surface of the cell along which ...
lanogaster has been developed. Spontaneously generated field potentials of constant amplitude can be recorded for 6-8 h (n = 14); in very few cases, ...
of several score millivolts. The ... The Several Forms of Activity. Like the ... Spontaneous activity in a ganglion cell as revealed by an electrode inside the.
The intracellular electrode was located in a polster-cell ... signals represent the summed electrical activity of several ... Tamm, S. L. (1982) in Electrical ...
patterning of electrical activity in the nervous system. In this regard, morphological and physiological studies have provided correlative data, some of ...
membrane - the plasma membrane - of a cell, or cells, at the point of ... Vascular bundles contain cells of several different kinds. ... system; and in the leaves ...
The wave of activity terminates at each spatial point as slow negative feedback carries the local system back to its rest state. For the shooting argument ...
Sep 24, 1997 · tigate how branch-point morphology and electrical activity ... increase transmission onto different postsynaptic cells. ... can present a sufficient ...
Oct 8, 2018 · electrical stimulation. A slowing of the compound action potential conduction velocity accompanies repetitive electrical activity. Cor ...
Electrical activities were generally recorded with suction electrodes made ... that they enter at some point around the margin. ... features are known in several ...