Cells in ~ the nervous system, dubbed neurons, interact with each various other in distinctive ways. The neuron is the simple working unit of the brain, a dedicated cell designed come transmit info to various other nerve cells, muscle, or gland cells.

You are watching: An impulse from one nerve cell is communicated to another nerve cell via the ________.


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Neurons room cells in ~ the nervous mechanism that transmit details to other nerve cells, muscle, or gland cells. Most neurons have actually a cabinet body, an axon, and also dendrites. The cabinet body consists of the nucleus and cytoplasm. The axon extends from the cabinet body and also often offers rise to numerous smaller branches prior to ending in ~ nerve terminals. Dendrites prolong from the neuron cabinet body and also receive message from various other neurons. Synapses space the call points whereby one neuron communicates through another. The dendrites are covered v synapses formed by the end of axons from other neurons.
Illustration by Lydia V. Kibiuk, Baltimore, MD; Devon Stuart, Harrisburg, PA

Neurons space cells in ~ the nervous mechanism that transmit details to various other nerve cells, muscle, or gland cells. Most neurons have a cabinet body, one axon, and dendrites. The cabinet body includes the nucleus and cytoplasm. The axon extends indigenous the cabinet body and often provides rise to many smaller branches prior to ending at nerve terminals. Dendrites extend from the neuron cell body and also receive message from other neurons. Synapses room the call points where one neuron communicates with another. The dendrites are covered v synapses formed by the ends of axons from various other neurons.

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The brain is what the is since of the structural and also functional nature of interconnected neurons. The mammalian mind contains in between 100 million and also 100 exchange rate neurons, depending upon the species. Every mammalian neuron consists of a cabinet body, dendrites, and also an axon.

The cell body contains the nucleus and cytoplasm. The axon extends indigenous the cell body and often offers rise to plenty of smaller branches prior to ending at nerve terminals.

Dendrites prolong from the neuron cabinet body and receive message from other neurons. Synapses room the call points where one neuron communicates with another. The dendrites are covered v synapses formed by the end of axons from other neurons.

When neurons obtain or send messages, lock transmit electrical impulses along their axons, i m sorry can selection in size from a tiny portion of an customs (or centimeter) to three feet (about one meter) or more. Plenty of axons space covered v a layered myelin sheath, which speeds up the infection of electrical signals along the axon. This sheath is do by dedicated cells called glia. In the brain, the glia the make the sheath are called oligodendrocytes, and also in the peripheral nervous system, lock are known as Schwann cells.

The mind contains at least ten times much more glia than neurons. Glia perform numerous jobs. Researchers have known for a while the glia move nutrients to neurons, clean up mind debris, digest parts of dead neurons, and aid hold neurons in place. Existing research is uncovering important brand-new roles because that glia in mind function.