Прочитайте текст. A nerve cell has three main parts: dendrites nucleus and axon. The dendrites recei...: ответ на тест 1072115 - Английский язык

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A nerve cell has three main parts: dendrites, nucleus and axon. The dendrites receive the information and send it through the axon. At the end of the axon the electric signals become chemical signals, cross to the next cell and continue the relay. The cells organize and cooperate to perform a task.
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The nerve cell is the fundamental unit of the nervous system. 1_______. Typically, a nerve cell looks like an octopus.
It has a central cell body from which tentacles extend. 2_______. The other tentacles or fibers receive impulses and carry them to the cell body; they are called dendrites.
3_______. Like telephone wires running underground, they form a kind of cable, which is enclosed in a flexible tube of connective tissue. This whole cable of nerve fibers is what we ordinarily call a nerve.
4_______. The nerve fibers growing out from them will regenerate, though slowly.

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The brain is the center of the nervous system. It is located in the head, usually close to the primary sensory organs for such senses as vision, hearing, balance, taste, and smell. In a typical human the cerebral cortex (the largest part) contains 15–33 billion neurons, each connected by synapses to several thousand other neurons. These neurons communicate with one another by means of long protoplasmic fibers called axons.
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People have been using natural 1_______ for thousands of years. Did you know, for example, that 2_______ originally came from the bark of the willow tree? In the 5th century ВС the Greek 3_______, Hippocrates, gave it to his 4_______ to stop their pains.

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Another natural 1_______ is 2_______, which used to be an important drug in the battle against 3_______. It comes from the bark of the cinchona tree, which grows in the Andes mountains in South America. Peruvian Indians have been using quinine for centuries to 4_______ fevers.

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In 1775 a British doctor, William Withering was unable to 1_______ a patient who had a serious 2_______ problem. However, the patient made a complete 3_______ after taking something a local woman had given him. The woman told the doctor she’d made the remedy from purple foxgloves. This natural 4_______ is still given to people with heart problems because it makes your heart beat more slowly.