This course covers general physiological concepts such as homeostasis, control theory, and system analysis. It also takes a detailed view of how these general principles apply specifically to the various physiological systems in humans and, in some cases, to other mammals. Systems such as respiration, circulation, digestion, metabolism, thermoregulation, and excretion are studied at cellular, tissue, and whole system levels. In cases where form is especially critical to function, anatomy is also covered although there is no human dissection. Laboratory course. This course cannot be taken for credit if the student has already received credit for BIOL 312. Prerequisite: BIOL 233.