In cockroach ,hepatic caecase are found at the junction of

Options

A. Midgut and hindgut
B. Crop and gizzard
C. Midgut and gizzard
D. Midgut and ileum

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks where the hepatic caecae are located in the cockroach's digestive system.

2. **Identifying the Digestive System Parts**: The cockroach's alimentary canal consists of several parts:
- Foregut: Mouth, Pharynx, Oesophagus, Crop, Gizzard
- Midgut: Coiled portion following the gizzard
- Hindgut: Ileum, Colon, Rectum

3. **Locating the Hepatic Caecae**: The hepatic caecae, also known as gastric caecae, are blind tubules that are associated with digestion. They are specifically located at the junction of the midgut and hindgut.

4. **Reviewing the Options**: The options provided in the question include:
- A) Midgut and Hindgut
- B) Junction of Crop and Gizzard
- C) Junction of Midgut and Gizzard
- D) Junction of Midgut and Ileum

5. **Analyzing Each Option**:
- **Option A**: Midgut and Hindgut - Incorrect, as this is where Malpighian tubules are found.
- **Option B**: Junction of Crop and Gizzard - Incorrect, as this is part of the foregut.
- **Option C**: Junction of Midgut and Gizzard - Incorrect, as the gizzard is the end of the foregut.
- **Option D**: Junction of Midgut and Ileum - Incorrect, as this is where Malpighian tubules are found.

6. **Conclusion**: The hepatic caecae are found at the junction of the foregut and midgut. Therefore, the correct answer is that they are located at the junction of the midgut and hindgut.

**Final Answer**: Hepatic caecae are found at the junction of the midgut and hindgut.

---