Arizona Bark scorpion
Arizona Bark Scorpion
The Arizona Bark Scorpion is found in the southwest United States and in some parts of Mexico. It has a very lethal sting that is often used to catch prey or to defend itself from predators. The digestive system for scorpions first begins outside the mouth. The food is digested by digestive juices that are supplied to the preoral cavity by the gut, before it enters the scorpion's mouth. The Setae, which is in the pre-oral cavity, filters material that can not be digested such as prey exoskeleton. These indigestible particles are matted together and expelled. The food then passes from the mouth to the pharynx to the esophagus. Drawing food into the body, the muscular pharynx acts as a pumping organ. After it goes through the esophagus, the food goes to the mid gut and then to the hind gut and is finally expelled through the anus. Excretion wastes are releases through the anus with feces.