Brain Coopaong Cerebellum Brain protocerebrum:原脑 deutocerebrum:中脑 Spinal cord tritocerebrum:后脑 Brachial plexus Musculocutaneous nerve Intercostal Radial nerve nerves costal nerve Median nerve lliohypogastric Lumbar nerve plexus Sacral Genitofemoral plexus Obturato Femoral nerve nerve Pudendal nerve cerebrum:大脑 Ulnar nerve Sciatic nerve cerebellum:小脑 medulla骨髓 scular branches CEREBRUM of femoral nerve Saphenous nerve Common peroneal nerve Tibial nerve CEREBELLUM MEDULLA Deep peroneal nerve 一 Superficial peroneal nerve Like the human.the insect has 3 major regions to its brain