Global ETD Search
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Showing 1 to 6 of 6 for “"Tracheal Tube"”.
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Patterns of Hemolymph Pressure Related to Tracheal Tube Collapse in the Beetle Pterostichus commutabulis
Rhythmic collapse and reinflation of tracheal tubes is a form of active ventilation that augments convective gas exchange in multiple orders of insects. The underlying mechanism driving this phenomenon is not known. Among other things, tracheal tube collapse could be caused by either direct …
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The role of the abdominal pump in tracheal tube collapse in the darkling beetle, Zophobas morio
… in the respiratory system by compressing their tracheal tubes, yet the underlying physiological mechanisms of tracheal collapse are also unknown. This study aimed to investigate the relationship between abdominal pumping and the compression of tracheal tubes in the darkling beetle, Zophobas …
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Η ΕΠΙΔΡΑΣΗ ΤΟΥ ΤΡΑΧΕΙΟΣΩΛΗΝΑ ΜΕ ΑΕΡΟΘΑΛΑΜΟ (CUFF) ΑΥΤΟΜΑΤΟΥ ΠΕΡΙΟΔΙΚΗΣ ΠΛΗΡΩΣΕΩΣ, ΣΤΟ ΕΠΙΘΗΛΙΟ ΤΡΑΧΕΙΑΣ ΣΚΥΛΟΥ (ΣΥΓΚΡΙΤΙΚΗ ΠΕΙΡΑΜΑΤΙΚΗ ΜΕΛΕΤΗ)
… STUDY WE DESCRIBE THE FUNCTION OF A MODIFIED TRACHEAL TUBE IN SUCH A WAY THAT THE CUFF SHOULD PERIODICALLY BE FILLED WITH AIR DURING THE RESPIRATORY CYCLE. WE ALSO STUDIED THE EFFECT OF THE MODIFIED TRACHEAL TUBE ON THE EPITHELIUM OF THE DOG'S TRACHEA. THE STUDY COMPARED TWO GROUPS OF ANIMALS. …
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Microfluidic Flow Creation in the Insect Respiratory System
… One, we used x-ray imaging to identify how tracheal tube compression, spiracular valving, and abdominal pumping coordinate to produce unidirectional flow during active respiration. In Chapter Two, we altered the environmental conditions by exposing the animals to various levels of hypoxia …
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Functional Characterization of a Cathepsin L in Drosophila Melanogaster
… Drosophila dorsal Air Sac Primordium (ASP) is a tracheal tube that invasively grows toward and into the wing imaginal disc. The unfolding of Drosophila wing is a process following eclosion with a cuticular bilayer replacing epithelial cells originally packing the wing. We reasoned that protease …
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Material Characterization of Insect Tracheal Tubes
… gas is driven through local deformations of the tracheal network, a phenomenon that is dependent on the unique structure and material properties of the tracheal tissue. To understand the underlying mechanics of this method of gas transport, we studied the microstructure and material properties of …