What Are Neurons And How Do They Transmit

What are neurons and how do they transmit information? (50 - 100 words) Plus...Pick a psychoactive medication or a drug and absolve how it works on the specific neurotransmitters of the brain. (100 - 150 words) (feel free to exercise resources in addition to your text, but please reference them). You go forth only score partial points if you do not dissolvent both parts of the question. Neurons are nerve cells, the grassroots structure blocks of the nervous system. Neurons differ, but all are variations on the alike(p) theme. all(prenominal) consists of a cell body and its branching fibers. The shaggy dendrite fibers commence information and conduct it toward the cell body. From there, the cells axon (sometimes covered with a myelin sheath) passes the message along to other(a) neurons or to muscles or glands. Axons speak. Dendrites listen (Myers, 35). Neurons transmit messages when moved(p) by signals from our senses or when triggered by chemical signals from neighboring neurons. At such times, a neuron fires an impetus, called the action say-so, a design electrical shudder that travels down its axon. Depending on the type of fiber, a neural impulse travels at speeds ranging from a sluggish 2 miles per hour to unsafe 200 or more miles per hour.

Each neuron is a miniature decision-making device performing decomposable calculations as it receives signals from hundreds, make up thousands, of other neurons (Myers, 36). We now know that the axon terminal of superstar neuron is in fact dislocated from the receiving neuron by a synaptic gap or synaptic clef slight tha n an millionth of an inch wide. When an acti! on potential reaches the knoblike terminals at an axons end, it triggers the release of chemical messengers called neurotransmitters. inwardly 1/10,000th of a second, the neurotransmitter molecules cross the synaptic gap and harbour to receptor sites on the receiving neuron as precisely as a cite fits a lock. For an instant, the neurotransmitter unlocks tiny channels at the receiving site, and...If you want to jack off a full essay, order it on our website: BestEssayCheap.com

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