Start with a discussion of different types of sensory receptors, including pressure, pain, touch, hot, cold, taste, vision. The receptors are specialized to be stimulated by specific stimuli. The transmission is through a sensory nerve, composed of sensory neurons, to the central nervous system. The brain then interprets the type of sensation and the location. A response to the sensory transmission is through the action of a motor nerve, leading to a muscle or gland which responds by contracting or secreting. Examples of some stimuli and responses were given. The nature of the nerve transmission was discussed in terms of ion charges surrounding the cell membrane, polarization, depolarization, and re-polarization.