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BIO2135 (167)
Jon Houseman (156)
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bio2135(3)

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Department
Biology
Course
BIO2135
Professor
Jon Houseman
Semester
Winter

Description
Lecture 8NematodaMarch12131229 PM March 12th 2013Slide 8283Insect Tagma6 head segments 3 thoractic segments 1213 abdomenal segmentsSpecific functions to specific tagmaHead sensory and food acquisitionThorax locomotion3 pairs of legs wings on 2nd and 3rdAbdomen reproduction and general functionDigestive systemMal tubulesReproductive structuresMust be able to expand and stretch for meals or egg storage Slide 84Generalized MouthpartsModified legs surrounding oral openingLabrum lip first segment of headLabiummaxillaIn front of mouth preprocess food before eating Slide 8586Head lines and LandmarksLines reinforcing points of skeletons divide head into regionsEscape line for where insect escapes cuticle243 Cuticile extends inwards to become interal skeletonCuticle extends arm pull at mandibles to not change the shape of head Slide 88Insect MouthHypopharynx divides mouth in upper region mouth and lower region salivary ductMadibulate mouthancestral Slide 89Piercing MouthpartsAdapt mouthpartsLabium Bottom of strawLabrum curledMaxilla and mandible elongated into needlelike structures force them through skin cut their way down and in straw gets blood anchor in capillary labrum extended in capillary
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