Information which comes to a neuron must arrive through its:
A. axons.
B. glial cells.
C. prefrontal area.
D. dendrites.
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Give your choices.
D. dendrites
To find the answer to this question, we need to understand the structure of a neuron and how information is transmitted within it.
A neuron is a specialized cell in the nervous system that is responsible for transmitting electrical signals. It consists of several components, including dendrites, axons, and glial cells.
Dendrites are branch-like structures that extend from the cell body of a neuron. Their main function is to receive incoming information from other neurons or sensory receptors. Dendrites have numerous branches and spines, which increase their surface area and allow them to receive signals from multiple sources.
On the other hand, axons are long, slender extensions of the neuron that transmit electrical signals away from the cell body to other neurons or target cells. They are covered by a fatty substance called myelin, which helps speed up the transmission of signals along the axon.
Glial cells, also known as neuroglia, are non-neuronal cells that provide support and protection to neurons in the nervous system. While they do not directly transmit information, they play crucial roles in maintaining the health and functionality of neurons.
Now, coming back to the question, the correct answer is option D. Information that comes to a neuron must arrive through its dendrites. Dendrites receive signals from other neurons or sensory receptors and transmit them towards the cell body. This incoming information is then integrated in the cell body and processed to generate outgoing signals through the axon.
Therefore, the answer is D. dendrites.