Central Nervous System

The central nervous system arises during embryonic development as an ectodermal delamination on the ventral side (Chapter 20, Section 7.3). Each embryonic segment includes initially a pair of ganglia, though these soon fuse. In addition, varying degrees of

FIGURE 13.4. (A) Lateral view of anterior central nervous system, stomatogastric nervous system, and endocrine glands of a typical acridid; (B) diagrammatic dorsal view of brain and associated structures to show paths of neurosecretory axons and relationship of corpora cardiaca and corpora allata; (C) dorsal view of corpora cardiaca to show distinct storage and glandular zones; and (D,E) transverse sections through corpora cardiaca at levels a-a' and b-b', respectively. [A, after F. O. Albrecht, 1953, The Anatomy of the Migratory Locust. By permission of The Athlone Press. B-E, after K. C. Highnam, and L. Hill, 1977, The Comparative Endocrinology of the Invertebrates, 2nd ed. By permission of Edward Arnold Publishers Ltd.]

Beekeeping for Beginners

Beekeeping for Beginners

The information in this book is useful to anyone wanting to start beekeeping as a hobby or a business. It was written for beginners. Those who have never looked into beekeeping, may not understand the meaning of the terminology used by people in the industry. We have tried to overcome the problem by giving explanations. We want you to be able to use this book as a guide in to beekeeping.

Get My Free Ebook


Post a comment