Ingluvial ganglion in cockroach is present on the surface of

Options

A. crop
B. gizzard
C. brain
D. none of these

Answer

To answer the question regarding the location of the ingluvial ganglion in the cockroach, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Ganglia**:
- Ganglia are clusters of nerve cell bodies that are part of the nervous system. In cockroaches, they play a crucial role in controlling neural activities.

2. **Identifying the Nervous System**:
- The cockroach has a nervous system that includes a series of ganglia. The most notable is the supraesophageal ganglion, which functions similarly to a brain.

3. **Exploring the Digestive System**:
- The cockroach's digestive system consists of the foregut, midgut, and hindgut. The foregut includes structures such as the mouth, pharynx, esophagus, crop, and gizzard.

4. **Locating the Crop**:
- The crop is a bag-like structure that serves as a storage area for food before it moves to the gizzard for grinding. It is part of the foregut.

5. **Understanding the Ingulvial Ganglion's Position**:
- The ingluvial ganglion is specifically associated with the crop. As food passes from the esophagus into the crop, the ingluvial ganglion is located on the surface of the crop.

6. **Conclusion**:
- Therefore, the ingluvial ganglion in cockroaches is present on the surface of the crop.

### Final Answer:
The ingluvial ganglion in cockroach is present on the surface of the **crop**.