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Structurally, neurons are unique because...

Structurally, neurons are unique because they are the only cells in the body that have :

A

lacunae and canaliculi

B

axons and dendrites

C

satellite cells and neuroglia

D

soma and stroma

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Neurons**: Neurons are specialized cells in the nervous system responsible for transmitting information throughout the body. They are unique in their structure compared to other cell types. 2. **Analyzing the Options**: - **Option 1: Lacunae**: This option refers to small spaces in bone tissue occupied by osteocytes (bone cells). This is not relevant to neurons. - **Option 2: Axons and Dendrites**: Neurons possess unique structures called axons and dendrites. Dendrites receive signals from other neurons, while axons transmit signals away from the neuron to other cells. - **Option 3: Satellite Cells and Neuroglia**: Satellite cells are associated with ganglia in the peripheral nervous system, and neuroglia are supportive cells in the nervous system but are not unique to neurons. - **Option 4: Soma and Stroma**: The soma refers to the cell body of the neuron, while stroma refers to the supportive tissue in organs, which is not specific to neurons. 3. **Identifying the Correct Answer**: The unique structures that distinguish neurons from other cells in the body are the axons and dendrites. Therefore, the correct answer is **Option 2: Axons and Dendrites**. 4. **Conclusion**: Neurons are structurally unique because they have specialized projections called axons and dendrites, which are essential for their function in transmitting nerve impulses. ---
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