![]() Almost all of them have lungs, but lack the diaphragm muscles of humans. With each breath you take, you are taking oxygen in, and putting carbon dioxide out.įrom your lungs, blood returns back into your heart where it is pumped out to the rest of your body, carrying oxygen along with it.įrogs are amphibians. As you exhale, or breathe out, you release the carbon dioxide-rich air into the space around you. Your heart pumps blood into the walls of your lungs where it absorbs oxygen and releases carbon dioxide. As you breathe in, you fill these sacs with fresh oxygen-rich air. Your lungs are, in their simplest form, nothing more than sacs. The main organs in your respiratory system are your lungs. For this reason, it is important that your body have a way to get rid of it. Too much carbon dioxide can be toxic, even deadly. As your body uses oxygen, your cells produce another gas known as carbon dioxide. Oxygen is used by your cells as it performs the functions of life. The job of your respiratory system is very simple: To bring oxygen into your body, and remove the carbon dioxide from your body. The digestive system in humans is much more complicated. Both the liquid and solid wastes leave the body through the cloaca (klo-ache-uh). Solid wastes from the large intestine go into the cloaca. Liquid wastes from the kidneys go through the ureters to the urinary bladder. There are large digestive glands, the liver and the pancreas, which are attached by ducts. This is where most of the digestion takes place. From there the food moves into the small intestine. From the frogs mouth food passes into the stomach by the esophagus. From here the f rog is able to flick out the tongue very fast to catch its prey. ![]() Most of the time the tongue is folded back toward the throat. The frogs tongue however is very important. Although the frog has teeth, they are basically useless. Mixing and movement - motions of the stomach turn food into a liquid mixture called chymeĭigestion - breaking down of the food into its basic parts - fats, sugars, proteins, and DNA particlesĪbsorption - taking in the useful or needed fats, sugars, proteins, and DNA particlesĮxcretion - getting rid of the remaining unusable food wasteĬheck out the diagrams and pictures provided.ĭigestion in a frog begins in the mouth. Secretion - making chemicals to break down food To achieve the goal of providing energy and nutrients to the body, six major functions take place in the digestive system: Accessory organs of the digestive system include the teeth, tongue, salivary glands, liver, gallbladder, and pancreas. In addition to the alimentary canal, there are several important accessory organs that help your body to digest food but do not have food pass through them. The alimentary canal is made up of the oral cavity, pharynx, esophagus, stomach, small intestines, and large intestines. Food passes through a long tube inside the body known as the alimentary canal or the gastrointestinal tract (GI tract). The digestive system is a group of organs working together to convert food into energy and basic nutrients to feed the entire body.
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