Arrange ganglia of autonomous nervous sytem of cockroach in correct sequence from anterior to posterior end
(a) Frontal ganglion
(b) Proventricular ganglion
( c) Hypocerebral ganglion
(d) Visceral ganglion

Options

A. a-c-d-b
B. a-d-c-b
C. b-c-d-a
D. b-d-a-c

Answer

To arrange the ganglia of the autonomous nervous system of a cockroach in the correct sequence from the anterior to the posterior end, follow these steps:

### Step-by-Step Solution:

1. **Identify the Ganglia**: The ganglia to be arranged are:
- Frontal ganglion
- Hypocerebral ganglion
- Visceral ganglion
- Proventricular ganglion

2. **Locate the Position of Each Ganglion**:
- **Frontal Ganglion**: This ganglion is located at the front of the cockroach, specifically on the pharynx, just in front of the brain.
- **Hypocerebral Ganglion**: This ganglion is situated behind the brain and above the esophagus.
- **Visceral Ganglion**: This ganglion is found on the wall of the crop of the cockroach.
- **Proventricular Ganglion**: This ganglion is located on the gizzard, which is towards the posterior end.

3. **Arrange the Ganglia from Anterior to Posterior**:
- Start with the **Frontal Ganglion** (anterior).
- Next is the **Hypocerebral Ganglion** (behind the brain).
- Followed by the **Visceral Ganglion** (on the crop).
- Finally, the **Proventricular Ganglion** (on the gizzard).

4. **Final Sequence**: The correct sequence from anterior to posterior is:
- Frontal Ganglion (a)
- Hypocerebral Ganglion (c)
- Visceral Ganglion (d)
- Proventricular Ganglion (b)

Thus, the correct arrangement is **ACDB**.