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 exempt how it works on the specific neurotransmitters of the brain. (100 - 150 words) (feel free to do 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 prefatory 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 observe information and conduct it toward the cell body. From there, the cells ax cardinal (sometimes covered with a myelin sheath) passes the message along to different 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 impulsion, called the action say-so, a design electrical crusade that travels down its axone. Depending on the type of fiber, a neural impulse travels at speeds ranging from a sluggish 2 miles per hour to breakneck 200 or more miles per hour.

Each neuron is a miniature decision-making device performing decomposable calculations as it receives signals from hundreds, eve thousands, of other neurons (Myers, 36). We now know that the axon terminal of one 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 po! tential 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 line fits a lock. For an instant, the neurotransmitter unlocks tiny channels at the receiving site, and...If you want to excite a full essay, order it on our website: BestEssayCheap.com

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