1. The structural and functional unit that carries out reflex action is called a reflex arc.
2. It consists of five components.
3. They are receptor, a sensory nerve, a association neuron, a motor nerve and an effector organ.
SI. No. |
Component of reflex arc |
Functions |
1. |
Receptor |
Receives information and generates impulses. |
2. |
Sensory neuron (Afferent) |
Carries information from the receptor to the interneurons in the spinal cord. |
3. |
Interneuron (Association neuron) |
Processes the information and generates responses |
4. |
Motor neuron (Efferent) |
Carries the information from the spinal cord to the effector organ. |
5. |
Effector organ |
Receives the information from the efferent neuron and shows the appropriate responses. |