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Question
Sunil unconsciously touched the hot iron rod and immediately withdrew his hand. Which type of action is involved? Also define this action. Draw a flow chart to show the path followed for this action.
Long Answer
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Solution
The action involved is a Reflex Action. A reflex action is a quick, automatic and involuntary response to a stimulus that occurs without conscious thinking and is mainly controlled by the Spinal Cord.
Flow chart showing the path followed in reflex action:
| Stimulus (Hot iron rod) |
| ↓ |
| Receptor (Skin sensory receptors) |
| ↓ |
| Sensory Neuron |
| ↓ |
| Interneuron (Spinal cord) |
| ↓ |
| Motor Neuron |
| ↓ |
| Effector (Muscles of the hand) |
| ↓ |
| Response (Hand withdrawn) |
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