Nervous System of Cockroach MCQ - Practice Questions with Answers

Nervous System of Cockroach

• The nervous system of cockroach consists of a series of fused segmentally arranged ganglia joined by paired longitudinal connectives on the ventral side.
• Three ganglia lie in the thorax and six in the abdomen.
• The nervous system of the cockroach is spread throughout the body.
• The head holds a bit of a nervous system while the rest is situated along the ventral part of its body .
• The brain is represented by supra-oesophageal ganglion which supplies nerves to antennae and compound eyes.

Sense Organs

• In cockroach, the sense organs are antennae, eyes, maxillary palps, labial palps, anal cerci etc. 
• Each eye consists of about 2000 hexagonal ommatidia
• With the help of several ommatidia, a cockroach can receive several images of an object. 
• This kind of vision is called mosaic vision.