In cockroach, spiracles are present on the

Options

A. Dorsal side of the body
B. Ventral side of the body
C. Lateral side of the body
D. Anterior region of body

Explanation

**Step-by-Step Solution:**

1. **Understanding Spiracles**: Spiracles are small openings found in the exoskeleton of insects, including cockroaches. They play a crucial role in the respiratory system by allowing air to enter and exit the body.

2. **Identifying the Function**: The primary function of spiracles is to facilitate gas exchange, which is essential for respiration. They help in regulating air intake and the release of carbon dioxide.

3. **Counting the Spiracles**: Cockroaches have a total of 10 pairs of spiracles. This means there are 20 spiracles in total.

4. **Distribution of Spiracles**: Out of these 10 pairs, 2 pairs are located in the thoracic region (the part of the body that includes the head and chest), and 8 pairs are located in the abdominal region.

5. **Locating the Spiracles**: The question asks where the spiracles are located on the cockroach's body. Based on the anatomical structure of the cockroach, the spiracles are found on the lateral sides of the body.

6. **Guarding Mechanism**: The openings of the spiracles are controlled by sphincters, which are muscular structures that can open and close the spiracles to regulate airflow.

7. **Conclusion**: After analyzing the options provided in the question, the correct answer is that spiracles in cockroaches are present on the lateral side of the body.

**Final Answer**: The correct option is the third one: **lateral side of the body**.

---