BIOB34H3 Lecture Notes - Extracellular Fluid, Fluid Compartments, Osmoregulation
Document Summary
Slide 2 osmoregulation is about regulating various aspects of the body fluids of animals: the animal is separated from its external environment. The external environment refers to either freshwater, marine, or terrestrial. These are the 3 major types of environment animal physiologists usually talk about: the animal is separated from the external environment by the integument. The integument is the boundary between the environment and the animal, so for animals this would be the skin. In animals with closed circulatory systems, another major fluid is the lymph. There isn"t a complete separation between interstitial fluid and blood plasma because that interstitial fluid is taken back to the blood plasma and comes back so a fluid circulation is going on. Ionic composition can be how animals regulate sodium, potassium, calcium ions and how they regulate volume example keeping the volume of the cell constant and causing it to not burst.
