๐”– Bobbio Scriptorium
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Patterned regeneration of internal femoral structures in the cockroach,Periplaneta americana L.

โœ Scribed by Kaars, C. ;Greenblatt, S. ;Fourtner, C. R.

Publisher
John Wiley and Sons
Year
1984
Tongue
English
Weight
543 KB
Volume
230
Category
Article
ISSN
0022-104X

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โœฆ Synopsis

The morphology of the nerve and tracheal supply to the extensor tibiae muscle in normal legs was compared to that in regenerate legs. In normal femurs, the extensor nerve and trachea extend along the posterior surface of the extensor muscle. The nerve and trachea are closely associated and branch coincidently at regular intervals. In regenerate femurs, the nerve and trachea are not closely associated with each other, and both structures differ from normals in their branching patterns. The results suggest that tissue level interactions during regeneration differ from those during embryogenesis.

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โœ Klaus Richter; Eckehard Baumann ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 100 KB

The prothoracic gland (moulting gland) of Periplaneta americana, the main source of ecdysteroids, was found to secrete proteins besides ecdysteroids. The course of ecdysone and protein secretion during the last larval instar was determined under in vitro conditions. Ecdysteroid production in the pro