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The Digestive System
Organs and Functions of the Digestive System
Question | Answer |
---|---|
What are the four functions of the digestive system? | Ingestion, Digestion, Absorption, and Elimination. |
What are the two digestion processes? | Mechanical and Chemical Digestion. |
What is Mechanical Digestion? | The physical breakdown of food. Ex. Chewing, churning |
What is Chemical Digestion? | The enzymatic breakdown of food. Ex. Digestive enzymes, mucosa |
What do Salivary Glands do? | Sends saliva through ducts to the mouth. |
What does Saliva do and contain? | Saliva contains salivary enzyme, that begins the process of digesting starch and also lubricates food. |
What is the name of food mixed with saliva as it passes to the pharynx? | The Bolus |
What does the pharynx serve as? | A passageway for food. |
What does the epiglottis do? | Closes off the trachea, forcing food into the esophagus. |
What is Peristalsis? | A series of wavelike muscle contractions that propel substances down the esophagus. |
Where is the Cardiac Sphincter found? | A muscle found closing the esophagus off from the stomach. |
What are Rugues? | Deep grooves/folds in the wall of the stomach. |
What are the three Gastric Juices? |