Question

what is reflex action​

Answer 1

Answer:

reflex action is a sudden action ,which the body performs suddenly ... the definition is =A reflex, or reflex action, is an involuntary and nearly instantaneous movement in response to a stimulus. Reflex actions happen through the reflex arc, which is a neural pathway that controls the reflexes. The receptor here is the sense organ that senses danger. The sensory neurons pick up signals from the sensory organ and send them through other neurons which are interconnected. It is then received by the relay neuron which is present in the spinal cord. Immediately, the spinal cord sends back signals to the muscle through the motor neuron. The muscles attached to the sense organ move the organ away from danger. In reflex actions, the signals do not travel up to the brain.

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Answer 2

Answer:

A reflex action, is an involuntary and nearly instantaneous movement in response to a stimulus. A reflex is made possible by neural pathways called reflex arcs which can act on an impulse before that impulse reaches the brain.