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  1. 1. EXTIRPATION AND IMPLANTATION Page 1 OF INSECT BRAIN BINUMON T M Dept Of Zoology University Of Kerala.
  2. 2. Page 2 Introduction  In insects there is no distinction between nervous and endocrine systems  The neurendocrine system is considered of four main elements:  The neurosecretary (NS) cells in the brain and ventral ganglia  The corpora cardiaca (CC), the principle neurochemical organs,  Storage and release of neuro secreatory materials  The Ecdysial glands (EG),  The corpora alleta (CA)
  3. 3. EXTIRPATION AND IMPLANTATION OF INSECT Page 3 BRAIN  Insects undergo striking and periodic post embryonic changes in rates of development, morphology, and physiology  A suite of hormones controls and coordinates these episodes of rapid developmental change

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