Âm thanh chia sẻ

Now this image shows how the brain, spinal cord, and muscles are connected. Let’s understand this step by step. When you touch something hot, your skin senses it and sends a signal. But instead of going to the brain first, the signal goes to the spinal cord. The spinal cord quickly sends a message to the muscles to pull your hand back. Only after that does the brain receive the information. So the action happens first, and then you realize it. This fast pathway is called a reflex pathway