In contrast to motor and relay neurons, the sensory neurons contain
Correct answer: B. single dendron.
- A. single axon.
- B. single dendron.
- C. multiple dendrites.
- D. multiple nodes of Ranvier.
Explanation
The correct answer is Option B: single dendron. Sensory neurons are distinct because they have a single dendron that conducts impulses from sensory receptors towards the cell body. In contrast, motor and relay neurons have multiple dendrites for receiving signals from other neurons. Option A is incorrect because having a single axon is common to all neurons, including motor and relay neurons, and does not distinguish sensory neurons. Option C is incorrect because multiple dendrites are characteristic of motor and relay neurons, not sensory neurons. Option D is incorrect because the presence of multiple nodes of Ranvier occurs in all myelinated neurons, not just sensory neurons.
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