In the first phase of the action potential
(depolarisation), there is rapid opening of the sodium channels in the membrane, sodium rushes into the cell bringing a positive charge with it.
A monopolar electrode is used to stimulate the top of the inserted pedicle screw with needle electrodes measuring action potentials
in the corresponding muscle groups.
In order to evaluate the effects of R(+)-puIegone on the electrical properties of cardiac myocytes, we first studied its effect on the action potential
waveform of isolated ventricular myocytes.
x] of the transient current density in the direction perpendicular to action potential
05, Student t-test for amplitude and Mann-Whitney test for resistance, ascendant (asc) and descendant (desc) inclinations and action potential
A model for compound action potentials
and currents in a nerve bundle III: A comparison of the conduction velocity distributions calculated from compound action currents and potentials.
Greater metabolic changes after the CON exercise could cause slower sarcolemma action potential
propagation (Broman et al.
The action potential
is prolonged in older hearts and may contribute to the longer calcium transient.
The analysis of sound frequency and intensity, however, have their origins in the cochlea, and are represented in the pattern of action potential
discharges found in auditory nerve fibers.
The investigators also discovered that in the exercise group, measures of vibration perception threshold, nerve distal latency, and nerve action potential
amplitude in the lower limbs were more favorable after 4 years than in the control group.
Fostering a prosperous tradition of neuroscience for more than six decades, and supporting numerous future Nobel laureates, it was at the Marine Biological Laboratory that much of the basis of neurophysiology was first described--in marine organisms: retinal neurophysiology, the development and use of the voltage-clamp technique in squid by Cole and Moore (1960), the discovery of the squid giant axon, the elegant analysis of the action potential
of the squid giant axon by Hodgkin and Huxley (1952), and the squid giant synapse discovery by Bullock and Harigawa (1957) used for elucidating the mechanisms of synaptic transmission.
Electromyography revealed no compound motor action potential
response in the right hypothenar eminence or the dorsal interosseous muscles.