{"role":"assistant","content":"A neuron is a specialized cell that is the fundamental building block of the nervous system. Neurons are responsible for transmitting information throughout the body via electrical and chemical signals. Here are the key features and functions of neurons:\n\n1. **Structure**:\n   - **Cell Body (Soma)**: Contains the nucleus and organelles; it is responsible for the metabolic activities of the neuron.\n   - **Dendrites**: Branch-like structures that receive signals from other neurons and convey this information toward the","refusal":null,"annotations":[]}