Biology for IGCSE & O level - Coordination And Response (Section 7 - No. 19)
In a reflex arc, what is the correct sequence of structures involved?
Receptor -> Sensory neuron -> Relay neuron -> Motor neuron -> Effector
Effector -> Motor neuron -> Relay neuron -> Sensory neuron -> Receptor
Receptor -> Motor neuron -> Relay neuron -> Sensory neuron -> Effector
Effector -> Sensory neuron -> Relay neuron -> Motor neuron -> Receptor
Explanation
The correct sequence: Receptor -> Sensory neuron -> Relay neuron -> Motor neuron -> Effector.
Comments (0)
