Smithsonian miscellaneous collections . —rNv Fig. 1.—The retrocerebral endocrine organs. A, diagram of a simple, perhaps generalized, arrangement of the corpora car-diaca and corpora allata on dorsal surface of stomodaeum behind the brain inassociation with the hypocerebral ganglion. B, diagram of ring gland of larvaof Calliphora (from M. Thomsen, 1951). AntNv, antennal nerve; Br, brain; Ca, corpus allatum; Cc, corpus cardiacum;ccNvs, corpus-cardiacum nerves; jrGng, frontal ganglion; hcGng, hypocerebralganglion; ImNv, labral nerve; RngCls, ring cells; rNv, recurrent nerve; Stom,stomodaeum; Tra
Smithsonian miscellaneous collections . —rNv Fig. 1.—The retrocerebral endocrine organs. A, diagram of a simple, perhaps generalized, arrangement of the corpora car-diaca and corpora allata on dorsal surface of stomodaeum behind the brain inassociation with the hypocerebral ganglion. B, diagram of ring gland of larvaof Calliphora (from M. Thomsen, 1951). AntNv, antennal nerve; Br, brain; Ca, corpus allatum; Cc, corpus cardiacum;ccNvs, corpus-cardiacum nerves; jrGng, frontal ganglion; hcGng, hypocerebralganglion; ImNv, labral nerve; RngCls, ring cells; rNv, recurrent nerve; Stom,stomodaeum; Tra, trachea. pars intercerebralis and cross each other from one side to the fibers traversing the corpus cardiacum form a nerve connec-tion between the latter and the corpus allatum of the same side. Because of the intimate nerve relation of the corpora cardiaca tothe secretory cells of the brain, and the observation that colloidgranules similar to those in the brain can be traced along the nervefibers into the corpora ca
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Keywords: ., bookcentury1800, bookdecade1860, bookidsmiths, booksubjectscience
