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Keywords: tracheal system
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Journal Articles
J Exp Biol (2019) 222 (8): jeb195388.
Published: 26 April 2019
...Stav Talal; Amir Ayali; Eran Gefen ABSTRACT Large insects actively ventilate their tracheal system even at rest, using abdominal pumping movements, which are controlled by a central pattern generator (CPG) in the thoracic ganglia. We studied the effects of respiratory gases on the ventilatory...
Journal Articles
J Exp Biol (2018) 221 (6): jeb174722.
Published: 15 March 2018
.... and Schneiderman , H. A. ( 1966c ). Discontinuous respiration in insects. III. The effect of temperature and ambient oxygen tension on the gaseous composition of the tracheal system of silkworm pupae . J. Insect Physiol.   12 , 105 - 121 . 10.1016/0022-1910(66)90069-2 Lewis , G. W. , Miller...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (23): 4432–4439.
Published: 1 December 2017
... tubes of the tracheal system. This study measured maximum flight metabolic rate (FMR) during tethered flight in the migratory locust Locusta migratoria under varying oxygen partial pressure ( P O 2 ) in background gas mixtures of nitrogen (N 2 ), sulfur hexafluoride (SF 6 ) and helium (He), to vary O 2...
Journal Articles
J Exp Biol (2015) 218 (18): 2840–2846.
Published: 1 September 2015
... to the gas-filled tracheal system through spiracles on the cuticle. Here, we measure P O 2 of the water and within the plastron gas with O 2 -sensing fibre optics to understand the effectiveness and limitations of the gas exchanger. The difference in P O 2 is highest in stagnant water and decreases...
Journal Articles
J Exp Biol (2012) 215 (18): 3324–3333.
Published: 15 September 2012
... muscle and only 1.6×10 9 ±1.4×10 8 μm 3 g −1 in the hopping muscles. Therefore, symmorphosis is upheld in the design of the tracheal system, but not in relation to the amount of mitochondria, which might be due to other factors operating at the molecular level. * Author for correspondence...
Journal Articles
J Exp Biol (2012) 215 (2): 362–373.
Published: 15 January 2012
..., velocity and the duration of heartbeat periods were determined by thermistor and electrophysiological measurements. For the first time, heartbeat-induced pressure changes were measured in the hemocoel and in the tracheal system of the thorax and the abdomen. The tracheal pressure changed from sub...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2011) 214 (19): 3225–3237.
Published: 1 October 2011
... stereology symmorphosis tracheal system In 1981, Taylor and Weibel, together with their co-workers, introduced the theory of symmorphosis. The principle was defined as the ‘state of structural design commensurate to functional needs resulting from regulated morphogenesis, whereby the formation...
Includes: Supplementary data
Journal Articles
J Exp Biol (2009) 212 (20): 3296–3304.
Published: 15 October 2009
... tracheal branches. The insect respiratory organ, the tracheal system, carries out one of the more unusual modes of gas exchange: it connects ambient gases essentially to every cell or group of cells in the organism via branching,air-filled tubes ( Wigglesworth,1983 ). Because respiratory gases...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2005) 208 (7): 1401–1411.
Published: 1 April 2005
... of a well-developed tracheal system on the metabolism during physical exercise was examined. The CO 2 release in intact animals increased with the running speed in both species. The costs of transport (COT)running at the maximal sustainable speed were nearly twice as big in M. muscosa as in P. lugubris...
Journal Articles
J Exp Biol (2001) 204 (24): 4321–4334.
Published: 15 December 2001
...Anke Schmitz; Steven F. Perry SUMMARY In jumping spiders, both the book lungs and the tracheal system are well-developed. The tracheal system consists of four thick primary tracheae that branch into small secondary tracheae, some of them ending in the opisthosoma and others entering the prosoma. We...