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Question: Answered & Verified by Expert
Which of the following structural order of ganglions are correctly represented in cockroaches?
BiologyStructural Organisation in AnimalsNEET
Options:
  • A Supra-pharyngeal ganglion, supra-oesophageal ganglion, sub-oesophageal, pro-thoracic ganglion, meta-thoracic ganglion, meso-thoracic ganglion, 1-6 abdominal ganglion.
  • B Sub-pharyngeal ganglion, supra-oesophageal ganglion, meta-thoracic ganglion, meso-thoracic ganglion, pro-thoracic ganglion, 1-6 abdominal ganglion.
  • C Sub-oesophageal ganglion, supra-oesophageal ganglion, sub-oesophageal, meso-thoracic ganglion, pro-thoracic ganglion, meta-thoracic ganglion, 1-6 abdominal ganglion.
  • D Supra-oesophageal ganglion, sub-oesophageal, pro-thoracic ganglion, meso-thoracic ganglion, meta-thoracic ganglion, 1-6 abdominal ganglion.
Solution:
2089 Upvotes Verified Answer
The correct answer is: Supra-oesophageal ganglion, sub-oesophageal, pro-thoracic ganglion, meso-thoracic ganglion, meta-thoracic ganglion, 1-6 abdominal ganglion.
Cockroach's brain or the central nervous system consists of the supra-oesophageal or cerebral ganglia, sub-oesophageal ganglia and circum oesophageal connectives in the head and a double ganglionated ventral nerve cord in the thorax and abdomen. The brain or supra-oesophageal ganglia are a pair of large, closely apposed ganglia in the head.

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