electric pulse

简明释义

电脉冲

英英释义

例句

1.The doctor used a device that emits an electric pulse to stimulate the patient's nerves.

医生使用一种发出电脉冲的设备来刺激病人的神经。

2.In physical therapy, an electric pulse can help reduce muscle pain.

在物理治疗中，电脉冲可以帮助减轻肌肉疼痛。

3.Researchers are exploring how electric pulses can enhance brain function.

研究人员正在探索如何利用电脉冲增强大脑功能。

4.The heart monitor detects the electric pulse generated by the heart.

心脏监测器检测到心脏产生的电脉冲。

5.The implant sends out regular electric pulses to maintain proper heart rhythm.

植入物定期发送电脉冲以维持心脏的正常节律。

作文

The human body is an intricate system that relies on various forms of communication to function properly. One of the most fascinating aspects of this system is the way our nerves transmit signals through what we call an electric pulse. This electric pulse (电脉冲) is essential for everything from muscle movement to the processing of sensory information. Understanding how these electric pulses work can give us deeper insights into both human biology and the development of medical technologies.When a nerve cell, or neuron, is stimulated, it generates an electric pulse (电脉冲) that travels along its axon. This process begins when the neuron receives a signal from another neuron or from a sensory receptor. The signal causes a change in the electrical charge of the neuron's membrane, which leads to the rapid depolarization of the cell. This depolarization creates an electric pulse (电脉冲) that propagates down the axon until it reaches the synapse, where it can trigger the release of neurotransmitters. These neurotransmitters then cross the synaptic gap to communicate with the next neuron in the chain.The speed at which these electric pulses (电脉冲) travel can vary significantly depending on several factors, including the diameter of the axon and whether or not it is myelinated. Myelination, which is the process of wrapping the axon in a fatty sheath, allows for much faster transmission of electric pulses (电脉冲). This is because myelinated axons enable the electric pulse (电脉冲) to jump between gaps in the myelin sheath, a process known as saltatory conduction. As a result, myelinated neurons can transmit signals at speeds up to 120 meters per second, compared to just a few meters per second in unmyelinated neurons.The role of electric pulses (电脉冲) extends beyond simple communication between neurons. They are also crucial in the functioning of muscles. When an electric pulse (电脉冲) reaches a muscle fiber, it triggers a series of biochemical reactions that lead to muscle contraction. This is how we are able to move our bodies, from the smallest finger movements to the largest leaps.In recent years, scientists have begun to harness the power of electric pulses (电脉冲) for medical applications. For instance, researchers are developing devices that use electric pulses (电脉冲) to stimulate nerves and treat conditions such as chronic pain or paralysis. These devices can send targeted electric pulses (电脉冲) to specific areas of the body, helping to restore function or alleviate discomfort. Additionally, advancements in neuroprosthetics are allowing individuals with limb loss to control prosthetic limbs using their own electric pulses (电脉冲), providing a greater sense of autonomy and improving quality of life.In conclusion, the concept of electric pulses (电脉冲) is integral to our understanding of the nervous system and its functions. From the rapid transmission of signals between neurons to the intricate processes that allow us to move, electric pulses (电脉冲) are fundamental to our existence. As research continues to advance, the potential applications of electric pulses (电脉冲) in medicine and technology promise to revolutionize the way we approach health and rehabilitation, making it an exciting field of study for the future.