ABSTRACT
There are three main types of receptor cell that are sensitive to touch: basket cells, which are found at the base of hair shafts; Pacinian corpuscles, which are embedded in hairless (glabrous) skin; and free nerve endings, which have no specialized receptors and are found in all types of skin. Raising the temperature of a region of skin by several degrees will result in a temporary sensation of warmth that will soon be replaced by the neutral sensation again. Complete adaptation takes place within a limited range of temperatures outside of which there will always be a sensation of cold or warmth, respectively. Kinesthesis refers to the sensory system that provides information about the relative position of the components of our jointed skeleton. The vestibular system lies within the inner ear and provides information about the body's motion and its position relative to gravity.
