If the head of a cockroach is experimentally removed, which of the following pairs of structures will immediately lose their direct nerve supply from the supra-oesophageal ganglion?

Step-by-step solution

In a cockroach, the brain is represented by the supra-oesophageal ganglion, which is located in the head. According to NCERT, this ganglion specifically supplies nerves to the antennae and compound eyes. Therefore, removing the head severs the direct nerve supply to these sensory structures. The wings and legs are innervated by the thoracic ganglia, while the anal cerci and anal styles receive their nerve supply from the posterior abdominal ganglia. The maxillary palps and labium are associated with the sub-oesopha