Identify the major structures and functions of the gastrointestinal system, including the oral cavity.
DefinitionIdentification should include the organs and accessory organs of the digestive tract and their functions as follows:
- Mouth and teeth to perform mechanical breakdown of food
- Esophagus to convey food to the stomach
- Stomach to churn the food bolus into chyme
- Small intestine to absorb food nutrients
- Large intestine to consolidate waste
- Liver to serve as a detoxification center for medications
- Gallbladder to emulsify fats
- Pancreas to produce insulin and digestive enzymes
- Where in the gastrointestinal system are most nutrients absorbed? Why is this important?
- What are the roles of the liver in the gastrointestinal system?
- How does food progress through the digestive tract?
Related Standards of Learning
The student will investigate and understand life functions of Archaea, Bacteria, and Eukarya. Key concepts include
- comparison of their metabolic activities;
- maintenance of homeostasis;
- how the structures and functions vary among and within the Eukarya kingdoms of protists, fungi, plants, and animals, including humans;
- human health issues, human anatomy, and body systems;
- how viruses compare with organisms; and
- evidence supporting the germ theory of infectious disease.