The correct sequence of events when someone's hand touches a hot object unconsciously :

The correct sequence of events when someone's hand touches a hot object unconsciously :
  1. Receptors in skin → Motor neuron → Relay neuron → Sensory neuron → Effector muscle in arm
  2. Receptors in skin → Relay neuron → Sensory neuron → Motor neuron → Effector muscle in arm
  3. Receptors in skin → Sensory neuron → Relay neuron → Motor neuron → Effector muscle in arm
  4. Receptors in skin → Sensory neuron → Effector muscle in arm → Motor neuron → Relay neuron

Solution

Receptors in skin →Sensory neuron →Relay neuron → Motor neuron→ Effector muscle in arm.

Asked in: CBSE

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