{"role":"assistant","content":"A neuron is a specialized cell that serves as the fundamental unit of the nervous system. Neurons are responsible for receiving, processing, and transmitting information throughout the body in the form of electrical and chemical signals. \n\nKey features of neurons include:\n\n1. **Structure**: Neurons typically have three main parts:\n   - **Cell Body (Soma)**: Contains the nucleus and organelles; it is where the metabolic activities of the neuron occur.\n   - **Dendrites**: Branch-like","refusal":null,"annotations":[]}