{"role":"assistant","content":"A neuron is a specialized cell that is the basic 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 of neurons:\n\n1. **Structure**: Neurons typically consist of three main parts:\n   - **Cell Body (Soma)**: Contains the nucleus and organelles, where most of the cell's metabolic activities occur.\n   - **Dendrites**: Branch-like extensions that receive signals from other neurons","refusal":null,"annotations":[]}