{"role":"assistant","content":"A neuron is a specialized cell that serves as the fundamental building block of the nervous system. Neurons are responsible for transmitting and processing information through electrochemical signals. Here are the key components and functions of a neuron:\n\n1. **Structure**: Neurons typically consist of three main parts:\n   - **Cell body (soma)**: Contains the nucleus and is responsible for the general metabolic functions of the neuron.\n   - **Dendrites**: Tree-like extensions that receive signals from other neurons","refusal":null,"annotations":[]}