RT Book, Section A1 Watkins III, John B. A2 Klaassen, Curtis D. A2 Watkins, John B. SR Print(0) ID 6486460 T1 Chapter 26. Toxic Effects of Terrestrial Animal Venoms and Poisons T2 Casarett & Doull's Essentials of Toxicology, 2e YR 2010 FD 2010 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-162240-0 LK accesspharmacy.mhmedical.com/content.aspx?aid=6486460 RD 2024/04/19 AB Venomous animals produce poison in a highly developed secretory gland or group of cells and can deliver their toxin during a biting or stinging act.Poisonous animals are those whose tissues, either in part or in their entirety, are toxic. Poisoning usually takes place through ingestion.The bioavailability of a venom is determined by its composition, molecular size, amount or concentration gradient, solubility, degree of ionization, and the rate of blood flow into that tissue as well as the properties of the engulfing surface itself.The distribution of most venom fractions is rather unequal, being affected by protein binding, variations in pH, and membrane permeability, among other factors.A venom may also be metabolized in several or many different tissues.Because of their protein composition, many toxins produce an antibody response; this response is essential in producing antisera.