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BIOL 4510 Crayfish Report.docx - Michaela Hicks Department...

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Michaela HicksDepartment of Biology, The University of North TexasBIOL 4510.507: Animal Physiology LabCrayfish Heart Lab ReportT.A Steven WilliamsApril 10, 2021
IntroductionThe circulatory system is a complex system of channels and pumps used to circulate nutrient rich fluids, blood and lymph, throughout the body (Moyes and Shulte, 2015). As the blood and/orhemolymph circulates, the nutrients they carry are diffused to other the organ systems. The main contractile unit in vertebrates and invertebrates is the heart. The heart is responsible for pumping blood and lymph to their respective locations. In vertebrates, the heart is myogenic-stems from muscle tissue contraction.Material and MethodsCrayfish Fine insulated copper wire Matches Foam pad Tupperware container Aluminum foil 18 g needle Cyanoacrylate adhesive Zip kicker cyanoacrylate accelerator Cotton tipped applicatorsFreshwater crustacean saline Bulb thermometer 100 ml graduated cylinder 1 ml micropipetterBlue micropipettor tipsImpedance converter 9 V battery1 mM Serotonin1 mM Acetylcholine 1 mM EpinephrinIn this experiment we used an impedance converter to monitor the crayfish’ heartrate. First, we prepped our crayfish by using an 18g needle to carefully drill two holes through the carapace

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Term
Fall
Professor
N/A
Tags
Biology, pulse, crayfish, Procambarus clarkii

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