Search results
Results From The WOW.Com Content Network
In humans, the epicranial aponeurosis originates from the external occipital protuberance and highest nuchal lines of the occipital bone. [1] It merges with the occipitofrontalis muscle . In front, it forms a short and narrow prolongation between its union with the frontalis muscle (the frontal part of the occipitofrontalis muscle).
An action potential occurs when the membrane potential of a specific cell rapidly rises and falls. [1] This depolarization then causes adjacent locations to similarly depolarize. Action potentials occur in several types of excitable cells, which include animal cells like neurons and muscle cells, as well as some plant cells.
Note that the amplitude and the exact shape of the action potential can vary according to the exact experimental technique used for acquiring the signal. Biological neuron models , also known as spiking neuron models , [ 1 ] are mathematical descriptions of the conduction of electrical signals in neurons .
The epicranial aponeurosis is a tough layer of dense fibrous tissue that covers the upper part of the skull. The epicranial muscle (also called the epicranius ) has two sections: the occipital belly , near the occipital bone , and the frontal belly , near the frontal bone .
Figure FHN: To mimick the action potential, the FitzHugh–Nagumo model and its relatives use a function g(V) with negative differential resistance (a negative slope on the I vs. V plot). For comparison, a normal resistor would have a positive slope, by Ohm's law I = GV, where the conductance G is the inverse of resistance G=1/R.
During the action potential before the hyperpolarization phase, the membrane is unresponsive to any stimulation. This inability to induce another action potential is known as the absolute refractory period. During the hyperpolarization period, the membrane is again responsive to stimulations but it requires a much higher input to induce an ...
A number of leading economists, including advisers to past U.S. presidents, have coalesced around the view that President-elect Donald Trump's plans to broaden tariffs, cut taxes and curb ...
Neural backpropagation is the phenomenon in which, after the action potential of a neuron creates a voltage spike down the axon (normal propagation), another impulse is generated from the soma and propagates towards the apical portions of the dendritic arbor or dendrites (from which much of the original input current originated).