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What is reflex action and pathway |
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Answer» Pathway of the reflex action:Suppose a pin is pricked suddenly in the foot. This stimulus received by the receptor organs (skin of the foot) stimulates and sensory fibre (afferent fibre) of the area. The nerve fibre carries the stimulus to the spinal cord through the dorsal root of a spinal nerve. Now form the spinal cord the impulse is passed to one or more motor (efferent) nerve fibres through the ventral root of the spinal cord. The motor nerve fibres stimulate the effector organ (muscles of the root) or organs to an activity so as to deal suitably with the stimulus. In this case pin pricking the portion of the body i.e., foot is immediately lifted.Fig.\xa0A typical reflex reaction, stepping on a pinl initiates a three neuron reflex\xa0 Ya, its given in ncert....... You should see the diagram of reflex arc for its pathway Involuntary and unconscious action of effectors are known as reflex actions.. Action we perform automticAlly |
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