Coordination in animals br Elements of Nervous system br 1. Neurons br 2. Receptors br 3. Effectors br Sensory Receptors of skin br Working of Sensory Receptors with special reference to skin br 1. Touch Stimulus br 2. Meissener's Corpuscles br 3. Pacinian Corpuscles br Distribution of receptors br Route of stimulus br Coordination and Control br Chapter No.