Respiratory movement in cockroach is coordinated by
Autonomous system
Nerve centres in thoracic ganglia
Myogenic centres in thoracic ganglia
Any two of them.
As we learned
Tracheal Ventilation -
Ventilation of tracheal system is by contraction and relaxation of abdominal muscles (tergo-sternal muscles)
- wherein
Respiratory movement is co-ordinated and regulated by nerve centres in thoracic ganglia