The digestive system is involved in: 1. The major organs involved in the process of digestion in frogs include mouth, pharynx, esophagus, stomach, small intestine, large intestine, and cloaca. PRESENTATION ON DIGESTIVE SYSTEM OF INSECT • By M. Furqan.Ali 2. 4. Let’s take a look at how the poultry digestive system works. DIGESTIVE SYSTEM 3. Note the genital opening in Figure 22. The digestion of food would take place in the cavities specialized or combined together. The digestive system is just a tube within a surrounding tube called the body. One of the main parts of the digestive system is the alimentary canal, a tube that runs from the mouth to the anus. Mechanically breaking it down into smaller particles that facilitate digestive enzymes acting on them 3. Even without teeth, chickens have one of the most efficient digestive systems in the animal kingdom. Accessory organs such as the liver, pancreas, and gallbladder are also an important part of the digestive system of frogs. Structure of the Digestive Tract. Obtaining food 2. The specific features we were looking for were: The spiracles, closable holes in the abdomen and thorax of the insect in which oxygen enters the insect; Trachea, ribbed tubules of chitin which are attached to the spiracles This incision will detach the entire reproductive system form the rest of the animal (Figure 23). Make incisions along the broken lines as indicated in Figure 22. Gently separate the reproductive system from the digestive system. DIGESTIVE SYSTEM The digestive tract not only aids in obtaining, processing and digesting food molecules - It is the largest endocrine tissue in both humans and insects. Caterpillar Anatomy: A Tube for Food - Butterfly anatomy includes a tube-shaped body, a set of mouth parts, a long digestive tract and six legs attached to the thorax. Insect Respiratory System: A complex of networked tubes known as a tracheal system Spiracles Spiracles are the valve like opening where air enters the body Spiracle Internal anatomy: Compared to us, the nervous system and circulatory system are reversed The hearts in the abdomen help pump the fluid forward into the aorta insects digestive system 1. Around 4,600 cockroaches are living aside human habitats. digestive system functions to altered the chemical and physical composition of food so that it can be absorbed and used by the body; ie Functions of Digestive System: 1. physical and chemical digestion 2. absorption 3. collect & eliminate nonuseable components of food Human Anatomy & Physiology: Digestive System; Ziser Lecture Notes, 2014.4 2 It starts with a mouth and ends with the anus.What goes on in between depends on the insect, its life stage and what it eats. Be careful to avoid cutting through the atrium. 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