Digestive System Worksheet

Digestive System Worksheet Name Part 1: Match the name of each organ with the letter that represents it on the diagram below. M A L B C K D E F J I G H K 1. Stomach L 9. Esophagus E 2. Gall bladder B 10. Tongue A 3. Oral cavity (mouth) I 11. Small intestine D 4. Liver M 12. Pharynx F 5. Large intestine H G 6. Rectum C 7. Salivary glands J 8. Pancreas 13. Anus Part 2: raw materials that your body uses for building tissues 1. Nutrients are a source of __________ fuel and _______ for cellular work. 2. Name the four stages of food processing and describe what happens in each stage. INGESTION – where the food is taken into the body using the mouth DIGESTION – where the food breakdown into smaller pieces/molecules ABSORTION – where is the responsible for taking the small nutrient into the body ELIMINATION – where the food that undigested waste to be eliminated from the body 3. Explain what peristalsis is. PERISTALSIS - is a pattern of wave-like muscular contractions that helps food pass through into the digestive tract. It begins inside this esophagus, in which powerful wave-like movements of smooth muscle transport digested food particles to the stomach. 4. List the organs that are part of the alimentary canal. MOUTH, PHARYNX, ESOPHAGUS, STOMACH, SMALL INTESTINE, LARGE INTESTINE, RECTUM AND ANUS 5. Name 4 organs that are accessory glands or organs in the digestive system. SALIVARY GLAND, PANCREAS, LIVER, GALL BLADDER Part 3: Using the key choices below, match the description given with the structure in the alimentary canal that it describes. Choices may be used more than once. A. Anus G. Microvilli L. Salivary Glands B. Appendix H. Mouth (Oral cavity) M. Small intestines C. Esophagus I. Pancreas N. Stomach D. Gallbladder J. Pharynx O. Tongue E. Large Intestines (Colon) K. Rectum P. Villi F. Liver D 1. Stores bile until it is secreted. P 2. Fingerlike extensions in the intestinal wall that increase surface area H & N 3. Two anatomical regions where mechanical digestion occurs. O 4. Organ that mixes food in the mouth. J 5. Common passage for food and air. C 6. Literally a food chute; it has no digestive or absorptive role. G I M E 7. Projections of the plasma membrane of a cell that increase the cell’s surface area. 8.Produces a juice that neutralizes stomach acid and contains digestive enzymes. 9. Organ responsible for absorption of most nutrients. 10. Organ primarily involved in water absorption and feces formation. B 11. Blind sac hanging from the initial part of the colon. N 12. Organ in which protein digestion begins. M M A F L K 13. Organ into which the stomach empties. 14. Organ that receives pancreatic juice and bile. 15. Opening through which feces are expelled from the body. 16. Produces bile. 17. Produce enzymes that begin carbohydrate digestion. 18. Stores feces until they are excreted. Part 4: Answer the following questions. 1. What is the end product starch digestion? Glucose 2. What is the end product protein digestion? Amino acids 3. What is the end product fat digestion? Fatty acids and glycerol 4. Where does starch digestion begin? Begins in the mouth with salivary amylase 5. Where is starch digestion completed? Slowdown in the stomach and then goes into overdrive in the small intestine 6. Where does protein digestion begin? Start in the stomach 7. Where is protein digestion completed? End in the small intestine 8. Where does fat digestion begin? Begins in the stomach 9. Where is fat digestion completed? Ends in small intestine 10. Explain the difference between mechanical digestion and chemical digestion. Mechanical digestion begins in your mouth with chewing, then, at that point, moves to agitating in the stomach and division in the small intestine. Peristalsis is likewise important for mechanical digestion. This alludes to compulsory constrictions and relaxations of the muscles of your esophagus, stomach, and intestine to separate food and move it through your digestive system. Chemical digestion includes the discharges of enzymes all through your digestive system. These enzymes break the chemical bonds that hold food particles together. This let the food to be separated into small, edible parts. 11. Explain how the small intestines are well adapted for absorption. A small digestive system is where the processing of food happens. Small intestine assumes a significant part during the time spent processing and it is the longest organ in the stomach related system. The presence of villi is the finger-like projection in the dividers of the small intestine for more effective food absorption. There are many blood vessels present inside the villi which helps in the absorption of food digested. At long last these blood vessels take the absorbed food to every single cell of the body.