Explain the nervous pathway reflex when touching something hot (5 marks)

The stimulus/heat is detected by receptors in the hand It sends an impulse via sensory neurones to the spinal cord/CNSChemicals are transmitted via the synapses and diffuses across the gap The impulses travel to the effector/muscle via the motor neuroneThe effector/muscle contracts and moves away from the hot stimulus

Answered by Lia H. Biology tutor

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