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 apologise how it works on the specific neurotransmitters of the brain. (100 - 150 words) (feel free to execute 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 base 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 notice information and conduct it toward the cell body. From there, the cells axone (sometimes covered with a myelin sheath) passes the message along to otherwise 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 neig hboring neurons. At such times, a neuron fires an disposition, called the action say-so, a design electrical waken 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 dangerous 200 or more miles per hour.

Each neuron is a miniature decision-making device performing decomposable calculations as it receives signals from hundreds, til now thousands, of other neurons (Myers, 36). We now know that the axon terminal of ane neuron is in fact dislocated from the receiving neuron by a synaptic gap or synaptic clef slight than an millionth of an inch wide. When an action potential r! eaches 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 cardinal fits a lock. For an instant, the neurotransmitter unlocks tiny channels at the receiving site, and...If you want to beat up a full essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper