Coordination in animals Nervous Coordination Elements of Nervous system 1. Neurons The chief structural and functional units of the Nervous system are Neurons. Neuroglia Types of Neurons. 1. The Sensory Neurons. 2. Associative Neurons. 3. Motor Neurons. Structure of Neurons. Dendron cell body 2. Receptors They detect changes in the environment of the animal Classification of Receptors a) Chemoreceptor b) Mechanoreceptor c) Photoreceptor d) Thermoreceptor e) Nociceptor 3. Effectors These are the structure which respond when they are stimulated by impulse coming via motor neuron Nerve Impulse it is a wave of electrochemical changes , which travel along the length of the neuron involving chemical reactions and movements of ions across the cell membrane . Electric potential Membrane Potential Resting Membrane Potential (RMP) Coordination and Control Chapter No.17 Biology Part 2
