Question

Abdominal ganglion in cockroach is not found in this segments

• A. 6
• B. 5
• C. 4
• D. 2 and 3

Answer 1

The correct option is B 5

Ganglion is a bundle of nerves that are present throughout the body that carries nerve impulses.

In cockroaches, there are 9 pairs of ganglions of which 3 pairs are located in the thoracic segments and 6 pairs of ganglions are present in the abdominal segment.

There are 10 segments all over the cockroach body.

Among the 10 segments, the ganglion is present in the 1st, 2nd, 3rd, 4th, 6th and 7th segments and is absent in the 5th, 8th, 9th and 10th segments.