Components of a Reflex Arc
•1. Activation of a Receptor: site of stimulus
•2. Activation of a Sensory Neuron: transmits the afferent impulse to spinal cord (CNS)
•3. Information processing at the Integration center: synapses (monosynaptic reflexes) or interneurons (polysynaptic) between the sensory and motor neurons.
–In CNS
•Spinal reflexes or cranial reflexes