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Name _________________________________ Period_______ Date_____________ Animal Digestion True / False- Circle the Correct Answer 1. True / False The purpose of a digestive system is to take food ingested by the animal and convert it into a usable form called energy 2. True / False Monogastric animals have four separate and distinct stomach compartments: The rumen, reticulum, abomasum, and omasum. 3. True / False The upper and lower incisors chew the feedstuff before being swallowed by the polygastric (ruminant) animal. 4. True / False The rumen is the only glandular or true stomach of a ruminant animal. 5. True / False Cattle, Sheep, and Goats, are all ruminant animals. Multiple Choice: Circle the correct answer to each question. 6. Which of the following makes up the large intestine? A. B. C. D. Colon & Cecum Colon & Jejunum Duodenum & Jejunum Illeum & Duodenum 7. Unlike monogastrics, ruminants do not have upper front teeth. What do they have instead? A. B. C. D. Cleft Pallet Dental Pad Reticular Groove Incisors 8. Monogastrics have difficulty digesting fibers. Without the ruminant system (4 chamber stomach) they can’t break down _____________________. A. B. C. D. Milk that is high in calcium Concentrates that are high in carbohydrates Roughages that are high in cellulose Mixed feeds that have high amounts of protein 9. What portion of the modified monogastric digestive system is enlarged to allow animals who eat a high percentage of fiber to digest their food when they only have a single chamber stomach? A. B. C. D. E. Cecum Colon Large Intestine Multi compartment stomach Small Intestine 10. What are the four stomach compartments in a ruminant animal? A. B. C. D. Paunch, Glandular, Honeycomb, Reticulum Rumen, Abomasum, Jejunum, Ileum Rumen, Omasum, Abomasum, Reticulum Rumen, Reticulum, Abomasum, Paunch 11. Which type of muscle is the digestive system composed of? A. B. C. D. Cardiac Skeletal Smooth Striated 12. There are 3 portions of the small intestine. Name them in order. A. B. C. D. 1st Duodenum, 2nd Ilium, 3rd Jejunum 1st Duodenum, 2nd Jejunum, 3rd Ilium 1st Ilium, 2nd Duodenum, 3rd Jejunum 1st Jejunum, 2nd Duodenum, 3rd Ilium 13. Which compartment in the ruminant system looks like the pages of a book and has very little moisture? A. B. C. D. Abomasum Omasum Reticulum Rumen 14. What is the structure in a young ruminant (calf) that allows milk to bypass the rumen and reticulum? A. B. C. D. Cleft Pallet Dental Pad Reticular Groove Incisors 15. What organ in the avian digestive system is only found in birds AND replaces the function of teeth by physically breaking down food? A. B. C. D. Gizzard Crop Proventriculus Ceca 2|Page Matching -- Match the animals on the left to the type of digestive system they have . Each option may be used once, more than once, or not at all. 11. _______ Rabbit 12. _______ Cattle 13. _______ Horses A. Ruminant 14. _______ Pigs B. Monogastric 15. _______ Dogs C. Modified Monogastric 16. _______Turkeys D. Avian 17. _______Goats 18. _______Chickens 19. _______Sheep 20. _______Ducks Short Answer: Answer each question below 21. The walls of the small intestine are lined with small fingerlike projections called ______________________. 22. The rumen also contains small fingerlike projections but they are called ____________________ and absorb nutrients through the rumen wall to provide energy. 23. Food is stored and soaked in the ______________________ of a bird before it continues through the digestive tract. 24. _______________________ is an enzyme that begins the chemical breakdown of carbohydrates in the mouth. 25. The exit of the avian digestive system is called the ___________________. 3|Page