Hepatic caeca observed in cockroach is positioned in its body in / at -

Options

A. between the `2^(nd) and 3^(rd)` segments of the mesothorax.
B. oesophagus
C. junction of foregut and midgut
D. junction of midgut and ileum

Answer

To determine the position of hepatic caeca in a cockroach, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Anatomy of the Cockroach**:
- The cockroach has a complex digestive system that can be divided into three main parts: the foregut, midgut, and hindgut.

2. **Identify the Parts of the Digestive System**:
- The foregut includes the mouth, pharynx, esophagus, crop, and gizzard.
- The midgut is where digestion and absorption primarily occur.
- The hindgut is responsible for the excretion of waste.

3. **Locate the Hepatic Caeca**:
- The hepatic caeca, also known as gastric caeca, are structures that are part of the digestive system.
- They are specifically located at the junction between the foregut and midgut.

4. **Confirm the Function of Hepatic Caeca**:
- The hepatic caeca are blind tubules that assist in digestion, providing additional surface area for enzymatic action.

5. **Final Positioning**:
- Therefore, the hepatic caeca are positioned between the foregut and midgut of the cockroach.

### Conclusion:
The hepatic caeca in a cockroach are located at the junction of the foregut and midgut.