How does sensation travel through the central nervous system?

Sensation travels through the central nervous system via sensory neurons, which transmit signals from sensory receptors to the spinal cord and brain. Once these signals reach the spinal cord, they may be relayed directly to the brain or processed locally to facilitate reflex actions. The brain then interprets these signals, allowing us to perceive sensations such as touch, pain, and temperature. This process involves various neural pathways and regions, including the thalamus and cerebral cortex, which play key roles in processing and interpreting sensory information.