What is reflex arc? Draw a labelled diagram to show reflex arc on touching a very hot object.

Explanation

### Step-by-Step Solution

**Step 1: Definition of Reflex Arc**
A reflex arc is a neural pathway that controls a reflex action. It is an involuntary response to a stimulus, allowing the body to react quickly without conscious thought. This mechanism is crucial for protecting the body from harm.

**Step 2: Components of a Reflex Arc**
A reflex arc typically consists of:
- **Receptor**: Detects the stimulus (e.g., heat from a hot object).
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