Multiple Choice
Which structure of a neuron is primarily responsible for receiving incoming signals from other neurons?
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45. Nervous System
Neurons and Action Potentials
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Which of the following best describes the primary function of dendrites in a neuron?
A
They transmit electrical impulses away from the cell body.
B
They release neurotransmitters into the synaptic cleft.
C
They generate myelin to insulate the neuron.
D
They receive incoming signals from other neurons.
Verified step by step guidance1
Understand the structure of a neuron: A neuron consists of three main parts - the cell body (soma), dendrites, and axon. Each part has a specific function in transmitting and processing information.
Learn the role of dendrites: Dendrites are branch-like extensions of the neuron that are specialized to receive signals (electrical or chemical) from other neurons or sensory receptors.
Clarify the process of signal reception: Dendrites contain receptors that bind to neurotransmitters released by other neurons. This binding initiates an electrical signal that travels toward the cell body.
Differentiate dendrites from other parts of the neuron: Unlike axons, which transmit signals away from the cell body, dendrites are primarily responsible for receiving incoming signals.
Conclude the primary function: Based on the explanation, the primary function of dendrites is to receive incoming signals from other neurons, making this the correct answer.
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