Activity 1: WHAT'S NEXT! Direction: Trace the pathway of food through the digestive tract by completing the chart using the words inside the box. Esophagus Large Intestine FOOD FECES Anus Large Intestine Small Intestine Rectum Pharynx 5. Mouth Epiglottis 4. Stomach 2. 3.
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Answer:
Sure, here's a completed chart tracing the pathway of food through the digestive tract:
1. Mouth - Food enters the digestive system through the mouth, where it is chewed and mixed with saliva to begin the process of breaking down carbohydrates.
2. Pharynx - From the mouth, the food travels down the pharynx, which is the passage that connects the mouth to the esophagus.
3. Esophagus - The esophagus is a muscular tube that carries food from the pharynx to the stomach through a series of muscular contractions called peristalsis.
4. Stomach - Once in the stomach, the food is mixed with stomach acid and digestive enzymes to further break down proteins and other nutrients. The stomach also grinds and churns the food to create a liquid mixture known as chyme.
5. Small Intestine - From the stomach, the chyme enters the small intestine, where it is mixed with digestive enzymes from the pancreas, liver, and small intestine itself. Nutrients from the food are absorbed into the bloodstream through the walls of the small intestine.
6. Large Intestine - Any remaining water and electrolytes are absorbed in the large intestine, which includes the colon and rectum. Bacteria in the large intestine also help break down any remaining nutrients.
7. Anus - Finally, the waste material, or feces, is eliminated through the anus, completing the digestive process.
Explanation:
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