Instead, after a single action potential, conduction becomes blocked. This is because, no matter how long the duration of the stimulating current, the sodium gates open and then become inactivated; that is, inactivation occurs after the normal time. The sodium gates then remain inactivated while ...
an action potential will be generated and sent to the brain via spinal cord (central nervous system) or not (Fig.1a). In the memristor nociceptor, an electrical pulse applied on the device emulates the external stimulus. When the pulse amplitude is higher than the threshold voltage of the ...
The onset of the action potential occurs at the threshold. This is because the threshold-voltage causes the opening of the: A. voltage-gated sodium channels B. voltage-gated potassium channels C. voltage-gated calcium channels D...
Phase 3 occurs as the result of decay in the inward calcium current and the activation of (several) outward potassium currents. The ion current responsible for the terminal portion of this phase of the action potential, as well as the current responsible for maintaining the resting potential, ...
Episodic memory, an essential element of orderly thinking, requires the organization of serial events into narratives about the identity of cues along with their locations and temporal order (what, where, and when). The hippocampus plays a central role i
When an emergency situation occurs, observers are more likely to take action if there are few or no other witnesses. This phenomenon is referred to as the bystander effect.The bystander effect is also called the Genovese effect, which is named after Cath
occurs 60. A. Remember B. Begin C. Keep D. Stop 免费查看参考答案及解析 题目: August always comes___we remember nothing but clear skies, green fields, and sweet-smelling flowers. A. when B. before C. until D. if 免费查看参考答案及解析 题目...
A deadlock occurs when two or more threads are blocked forever, and none can proceed. This happens when threads need exclusive access to a shared set of resources and the threads acquire locks in different orders. This is illustrated in the example below in which two threads need exclusive ac...
40 This situation also occurs when recording over the abductor digiti minimi and stimulating the ulnar nerve.40 A similar appearing potential, intramuscular nerve action potential, may be observed with a recording electrode located a bit more distally than that over the abductor pollicis brevis’ ...
This potential occurs about 0.5 msec after the nerve volley has entered the spinal cord, gets its peak in the subsequent 1–1.5 msec and thereafter decays with an approximately exponential time course with an average time constant of 5 msec. This characteristic potentials have been named an ...