BIOL BC 1500x Lecture Notes - Lecture 7: Fluid Compartments, Osmotic Pressure, Tonicity

• School: Barnard College
• Department: Biological Sciences
• Course: BIOL BC 1500x
• Professor: hertz

Document Summary

Water balance and excretion of nitrogenous wastes. If solute conc in environment > solute conc in animal -> enviro = hyperosmotic to animal, & physiologically dry. The vertebrate liver and homeostasis: structural relationship to circulatory system (1072-1080, portal system: blood flows from heart to capillary bed, then to another capillary bed, hepatic portal system in liver, regulation of blood sugar level. If too much sugar, converts sugar -> glycogen. Osmoregulatory and excretory systems: insects, see insect pic, effects of an open circulatory system, malphigian tubules, the vertebrate kidney, kidney pic, general structure, medulla, cortex, nephrons, look @ nephron pic, general function, freshwater and marine fishes, mammals. 7-4: water & molecules into bowman"s capsule, filtrate from glomerulus, circ system starts from renal artery -> glomerulus (high electrostatic pressure, when circ system leaves nephron, forms large network of capillaries that surround nephron tubule.