{"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 information throughout the body via electrical and chemical signals. There are three main types of neurons:\n\n1. **Sensory Neurons**: These neurons carry signals from sensory receptors (like those in the skin, eyes, and ears) to the central nervous system (CNS). They help the body to perceive different stimuli, such as light, sound, and touch.\n\n2. **","refusal":null,"annotations":[]}