Question

Describe the peripheral nervous system of cockroaches.

Answer 1

Peripheral nervous system of cockroaches:

1. The peripheral nervous system of cockroaches comprises all nerves arising from the nerve ring and ventral nerve cord.
2. The supra-oesophageal ganglion gives rise to a pair of optic, antennary, and labro-frontal nerves.
3. The eyes are innervated by optic nerves and antennary nerves by the antennae.
4. The labro-frontal nerves get divided into a labral nerve which supplies the labrum and a frontal nerve which joins the sympathetic nervous system.
5. The suboesophageal ganglion gives rise to a pair of mandibular, maxillary and labial nerves that innervate the mandibles, maxillae and labium.
6. A pair of nerves arise from each thoracic segment and innervates the thorax.