Question

Which of the following is correct w.r.t. nervous system of Periplaneta americana?

• A. Ventral part of body holds a bit of nervous system while rest is present in head
• B. Brain supplies nerves to antennae and compound eyes
• C. Brain is represented by sub-oesophageal ganglion
• D. If the head of cockroach is removed, it will immediately die as brain is situated in head region

Answer 1

The correct option is B Brain supplies nerves to antennae and compound eyes

Head holds a bit of nervous system while the rest is situated along the ventral part of its body. Brain is represented by supra-oesophageal ganglion. If the head of cockroach is cut off, it will still live for as long as one week.