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Which part of a neuron receives incoming signals from other neurons?
AThe axon and its branches
BThe dendrites of the cell
CThe soma, or cell body
DThe terminal buttons
Answer & Solution
Correct answer: B. The dendrites of the cell
1. A neuron's structure maps directly onto the direction a signal travels.
2. Dendrites are branching extensions of the soma and serve as the input sites where signals are received from other neurons.
3. The signal then passes through the soma and down the axon to the terminal buttons.
4. The terminal buttons release neurotransmitters into the synapse, so they are the output end rather than the input end.
_Source: OpenStax Psychology (1st ed., CC BY 4.0), Ch 3 "Biopsychology", §3.2 Cells of the Nervous System_
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