Touch sensation is the ability to perceive physical contact with the skin. It is one of the five primary senses and is crucial for interacting with the environment. Specialized nerve endings in the skin detect various stimuli, such as pressure, temperature, and pain, sending signals to the brain for interpretation. The skin contains different types of receptors that respond to specific types of touch. For example, Meissner's corpuscles are sensitive to light touch, while Pacinian corpuscles detect deep pressure. This complex system allows humans to experience a wide range of tactile sensations, contributing to overall sensory perception and interaction with the world.