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What are reflexes? Write its two types.

Answer» Reflex Action: A reflex action is a spontaneous ,automatic and mechanical response to stimulus or sudden action in response to something in the environment.For Ex: Blinking of eyes, movement of diaphragm, withdrawal of hand or foot every time when a needle or hot object is touched, sneezing, hunger etc.1) Sensory(receptors)a) It occur in sense organs.b) It receive stimuli by dendrites.c) It transmit impulse towards brain and spinal cord through axons.2) Motor(Effectors)a) Dendrites of these neurons synapse with axon of sensory nerves.b) They transmit impulse from brain and spinal cord to effectors(muscle or glands)3) Relaying(connectors)a) They occur in brain and spinal cord.b) They link sensory and motor neurons for distant transmission of nerve impulse.


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