BIO325H5 Lecture Notes - Lecture 13: Tergum, Sclerite, Insect Flight

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18 Apr 2016
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They have only one pair of wings but the other wings have become halteres (a sensory organ) The tergum distorts in different sections during the wingstroke. Consider the contraction of the logitudnals from anterior to posterior phragmata. Bio325: when the logitudinals contract they reshape the tergum (scutum and scutellum are parts within the tergum) The same lever makes it go down too and thus helps with wing movements. Scuteller lever is a throw-rod for changing gears: imagine a fist and your knuckles being gear changes, movement between knuckles is when the thing moves up and down and thts the. Clicking part : they also contain pleural and sternal apophysis that help with storing energy, what happens is that the pleurosternal muscle stiffens and it allows the pleuron to maintain shape and give a more powerful down stroke. Fulcrum starts at 2nd wing axilary atop the pleural wing process.

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