Part one of term paper
The human, earthworm, and grasshopper digestive systems all have some similarities, as well as some differences. In the human digestive system, the process begins at the oral cavity (mouth). The mouth contains the teeth, tongue, and the salivary glands. The salivary glands contain saliva, salivary amylase, which breaks down starches into ...

Part two of term paper
... then enters the esophagus. The bolus will then pass through the cardiac sphincter into the stomach. In the stomach, the muscular lining churns the food causing mechanical breakdown to take place. In the stomach lining, the pyloric glands secrete mucus that forms a mucus lining. Also in the stomach lining, are epithelial cells and the gastric glands. The gastric glands secrete gastric juices. Hydrochloric acid is released which deactivates the salivary amylase, in turn stopping the chemical ...