BIOL BC 1500x Lecture Notes - Lecture 8: Subcutaneous Tissue, Vasoconstriction, Evaporation
30 Sep 2015
School
Department
Course
Professor
Document Summary
Chapter 01, 46: thermal relations of vertebrates, why temperature is important (1085-1087, range of temperatures on earth. See seagull pic: anatomical correlates of endothermy, high metallic rate, efficient digestive and respiratory systems, efficient circulatory systems insulation, physiological control of temperature, see brain pic, role of the hypothalamus, precision of temperature control. See graphs: geographical and ecological distributions, using null hypotheses to demonstrate behavioral temperature regulation, lizard models = null hypothesis, placed randomly. If actual lizard action in sun < lizsrd models, they don"t go to sun on purpose because they don"t go to sun more than often: according to graphs, cristaellus regulates body temp & gundlachi doesn"t. Hoff"s law: for every 10 degrees c, speed of physiological functions doubles. ____ shivering = uncoordinated skeletal contractions changes in blood flow stim sweating. 8-3 hypothesis a: lizard is doing something active to regulate body temp hypothesis b: lizard happens to live in environment that helps it thrive.
