Neuron-Basic unit of the nervous system dendrite 3 basic types ◆a)monopolar Most soma axon common in insects neurite terminal arborization -b)bipolar Peripheral soma axon sense cells are bipolar dendrite Occur usually in ◆c)multipolar perikaryon the ganglia axon soma 、N soma=perikaryon dendrites 丝弹显虫郭饼生盟 加9-g7了hen0ia]岁u5扣0ud/9yoe短
中神经 运动神经元的细胞体 神经索的背神经纤维区 神经索 背根中的运动神经 中央神经随区 第1侧神经 第2侧神经 神经细胞 一神经髓 第3侧神经 神经鞘 腹根中的感觉神经 B 联系神经元的细胞体神经索的腹神经纤维区 图16-2昆虫神经节的模式图(A)及一种蜻蜓稚虫腹神经节的横切面(B)(仿Zawarzin) 器洋易中阴那辨司生里 山y为g12为2过心0则选y/龙yof阳
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
The Central Nervous System 中枢神经系统 脑Brain 食道下神经节Subesophageal ganglion Thoracic 胸神经节 ganglia 腹神经节 Abdominal ganglia A B C FIGURE 11.12.Consolidation of the ventral ganglia.A.Example in a coleopteran.B.Example in a hymenopteran.C.Example in a dipteran.From Gullan and Cranston (2000).Reprinted with permission
THE VISCERAL NERVOUS SYSTEM 内脏神经系统 Frontal ganglion额神经节 脑Brain Frontal connective额神经索 Recurrent nerve逆走神经 Corpora 心侧体 cardiaca Hypocerebral ganglion 脑下神经节 食道Esophagus Esophageal nerve 食道神经 中肠Midgut Esophageal ganglion食道神经节 FIGURE 11.13.The stomatogastric nervous system.From Hartenstein (1997).Reprinted with permission