What structure of a neuron receives impulses from other neurons?

What structure of a neuron receives impulses from other neurons?

• A. Axon
• B. Soma
• C. Dendrites
• D. Synapse

Answer: (C)

The structure of a neuron that receives impulses from other neurons is the dendrites. Dendrites are branching extensions of the neuron that function to increase the surface area for receiving signals. They are equipped with receptors that bind to neurotransmitters released by other neurons, allowing the neuron to receive and process incoming information. This makes dendrites crucial for the communication between neurons, as they facilitate the transmission of signals toward the soma (cell body) of the neuron.

The axon, while also an essential part of the neuron, is primarily responsible for transmitting impulses away from the cell body to other neurons or target tissues, not for receiving them. The soma contains the nucleus and other organelles, playing a more central role in maintaining cell health and processing information but not in receiving signals directly. The synapse is the junction between two neurons where neurotransmitter release occurs, but it is not a structure that receives impulses; rather, it is the space where communication happens. This functional distinction makes dendrites the correct answer for the structure that receives impulses from other neurons.