The ingrowth of exoskeleton in the head of cockroach is called

Options

A. Notum
B. Pleura
C. Tentorium
D. Apodemes

Answer

To solve the question regarding the ingrowth of the exoskeleton in the head of a cockroach, we can break it down into the following steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the specific term that describes the ingrowth of the exoskeleton in the head of a cockroach.

2. **Identifying the Options**: The options provided are:
- Option 1: Notum
- Option 2: Pleura
- Option 3: Tentorium
- Option 4: Epidermis

3. **Analyzing Each Option**:
- **Notum**: This refers to the dorsal part of the thorax in insects, not specifically related to the head.
- **Pleura**: This term generally refers to the lateral sides of the thorax and is not associated with the head structure.
- **Tentorium**: This is known as the internal skeleton in the head of insects, providing structural support and a site for muscle attachment.
- **Epidermis**: This is the outer layer of cells, not an ingrowth of the exoskeleton.

4. **Identifying the Correct Answer**: Based on the analysis, the term that describes the ingrowth of the exoskeleton in the head of a cockroach is **Tentorium** (Option 3). It plays a vital role in providing strength to the head capsule and serves as a site for muscle attachment.

5. **Conclusion**: Therefore, the correct answer to the question is **Tentorium**.