Question

Which of the following characteristics of the double ventral nerve cord holds true in case of Periplaneta americana?

• A. Nerve cord is double
  
• B. Extends throughout of the body
  
• C. Ganglia are segmented
  
• D. All of the above
  

Answer 1

The correct option is D All of the above


The nervous system of cockroaches consists of ganglia that are fused and segmentally arranged in the nerve cord. They are joined by paired longitudinal connectives on the ventral side. Three ganglia lie in the thorax and six ganglia in the abdomen. Nerves from thoracic ganglia are supplied to legs and wings and the abdominal ganglia supply nerves to various parts in abdomen